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Drills – A Must Tool for DIY To Heavy-Duty Industrial Jobs

The drill has been closely associated in man’s march to technological advancement. Drilling implements probably came into being sometimes in the iron age or even earlier. Crude might be, he must have observed that by turning of a pointed bar spun between his hands, repeatedly at one place, can cut deep holes even in stones or wood. Since that time, it became the most favored tool in his collection of gears. The present shape of the drill has been arrived at by incorporating newer technologies and materials. From manually operated drills, we moved to a variety of power drills. In its present form, a drill is consisting of two parts, the driving mechanism, and drilling bit. With a powerful motor, enclosed in a gun-shaped body, equipped with a trigger-type on/off switch at the finger tips, the drill has become a versatile tool for both home and commercial use. The drill is an indispensable tool for trades including woodworking, metal working, construction and to DIY-ers and comes in various types, sizes and power ratings for a large variety of uses.

Electric Drill

The electrically driven drills produce sufficient energy to generate a rotary motion to the attached bit. Connected to an electrical point with the help of an electric cord, the drill is ready to perform. You have to choose a right bit from the set of replaceable bits designed to do many different jobs. The bits, made of stainless steel or alloy steels with chromium or nickel coated tips for extra strength, are packed meticulously in the form of a kit. Another variation of electrically powered drill comes in the cordless variety. In cordless drills, a powerful rechargeable battery provides electric supply to the motor. After a work cycle, they are required to return to the recharging point. Compact Nickel-Cadmium rechargeable batteries are being replaced by Lithium-ion batteries those are smaller, light weight with higher current capacities to produce torque and speed rivaled by corded tools. Cordless tools are getting better with innovative brush-less motor and improved Lithium-ion battery technology for longer run-time on a single battery charge. Now, it is possible to energize small portable drills as required for jewelry purpose to big heavy-duty drills for masonry works. The recharging bays in an industry is a common sight as cordless drills are now an indispensable tool for assembly plants. A cordless drill is also handy to emergency services where power availability could be a problem.

Pneumatic Drill

Pneumatic drills are standard in a working environment. At the heart of a pneumatic drill is the power of compressed air supplied by an air compressor. An air compressor and pipes strung along the workspace to carry the compressed air are a common sight in an industrial environment. The air is compressed, employing rotary screw or piston-type motors, both electrical or gas driven, to pump air into a compressor tank. It is the pressure developed in the tank and quantity of air flow to an air tool that drives a pneumatic tool. There is no motor in a pneumatic drill. The compressed air forces vanes attached to a shaft that turns a flywheel to store rotational energy. When engaged, the flywheel provides enough power to create rotary motion in the attached bit. A standard air drill needs 3- 6 cubic feet per minute of air flow at 90 PSI. Air tools do not burn out if stalled, produce more torque to power a great variety of applications, be it road making, construction, wood cutting, auto repair, spray painting, orthopedic treatment, dental or opening of blocked arteries.

Versatility as Tool

Drills are not only used to bore holes; some drills come with added hammering action to intensify the speed of work. In particular cases, drills are used simply as a motor to drive a variety of applications such as screw driving, water pumps, cutting metal sheets, rotary sanding and polishing. Bits are designed to do different jobs like slicing or shaving, crushing, countersinking, and much more.

Advantages of Pneumatic Drill Over Electric Drill

Pneumatic drills are rugged, compact, lighter with heavy-duty rating. They can be designed ergonomically to work in confined spaces. As there are fewer moving parts in an air-powered motor than an electrical motor, they need relatively maintenance free. Pneumatic drills are well suited to work in a wet or damp environment, where use of an electrical motor can be hazardous. Due to more power, pneumatic drills can perform complex jobs more quickly. On the other hand, air drills are a bit expensive than electrical drills. Unless you have other uses for the air system, it is not viable for just one drill. Cordless electric drills come with freedom of tethered limitations and thus opening of new areas in industrial and home applications.

The Significance of Tool Balancers in Assembly Applications

Tool Balancers play a significant role in making the production environment worker friendly. They make production and assembly procedures quite convenient and safe by an ergonomic positioning of required heavy tools. Tool Balancers help improve the productivity by handling a variety of loads and movement capacities to set up your work area tools. Tool Balancers provide easy handling for operators to work for extended and continuous hours without getting excessively Fatigued.  Some outstanding features of Tool Balancers

  • Available in a variety of configurations for various tool sizes
  • Suspends tools for easy access
  • Easy adjustment abilities as per tools for proper positioning
  • Improve tool management in crowded production area
  • Improves efficiency by reducing worker fatigue

Tool Balancers are designed to hold the tools with an attached cable; The retraction force brings the tools to its starting position after use without cluttering the workbench. As the cable is extended, the resulting spring force also increases.  Some versions of Tool Balancers are fitted with an automatic arresting system which holds the tool in a predetermined position.  It prevents an accidental slip of costly tools from damage thus improving the tool life.

A Certain variety of Tool Balancers are termed as Zero Gravity Tool Balancers for easy handling of tools by operators. The Tool Balancers allow tools to be positioned close to the workstation for comfortable handling. They can safely hold cutting tools and grinding wheels or even parts those are needed to be machined precisely. Some balancing adapters can carry a variety of work-pieces easily. By adding tool balancing to the production process, the productivity is bound to go up by further decreasing costs. Tool Balancers technology now comes with an interactive interface with various other functions that makes the balancing process easy and user-friendly.

Tool Balancers provide

  • Ergonomic access to tools reducing operator fatigue and lower the risk of repetitive motion syndrome.
  • Employing Tool Balancers improves worker comfort, efficiency and speed of the assembly line and keep tools out when not needed.
  • Prevents damage to heavy and costly tools from accidental dropping
  • Counterbalances weight of tools making it weightless
  • Many versions available with different load ranges
  • Adjustable positioning of tools
  • Can hold a variety of tools like pneumatic drills with an air hose, electric drills with connecting wires.

Tool balancers are familiar sights in factories and auto shops. Several people may not recognize a tool balancer on a first look or understand what it does, but those who use them can vouch for their effectiveness.

Pneumatic motor- Air Motor/Compressed Air Engine And Their Application

A compressed air motor works with the conversion of energy of compressed air to
perform mechanical work. The compressed air expands to generate a rotary or
linear motion that has given rise to numerous applications. The hand-held power
tools are one area where the pneumatic motors are successfully employed. From
spinning of a dentist’s drill at 50,000 rpm to a burly heavy-duty jackhammer, the
pneumatic motors are at the heart of the process. Pneumatic motors have existed in
one form or other over a long time.

Linear motion commonly uses a system of pistons. The air is fed to an airtight
chamber which pushes a piston fitted with a coiled spring. As the pressure
develops, the piston moves down the chamber and at maximum length, the air is
released and the spring coils back the piston to the original position. The kinetic
energy of air is thus converted to mechanical energy. In rotary system, rectangular
vanes are fixed to a rotating element, and air thrusts the vanes to move creating
rotational motion. The rotational speed varies with air pressure.
In hand held tools, the pneumatic motors have added another dimension in their
use. There are air power drills, impact wrenches, grinders, nut runners, sanders to
name some. Pneumatic motors have several advantages over electric motors. They
offer greater power density, especially higher power-to- weight ratios to generate
more torque, can work in hazardous environments, don’t need an auxiliary speed
controller making it compact and lighter, have good compliance. Unlike electric
motors, when overloaded, they just stop and don’t get overheated or sparked out.
At the same time, there are some control problems known to be associated with air
tools. A hose connects the tool to an air tank which consumes some time to
develop the required pressure whereas an electric motor is ready to function as
soon as plugged to the power supply. Air compressors are not only costly but also
are noisy, heavy, needing periodic maintenance.
The tools which use pneumatic motors are a type of power tools. Among the
factors which govern a particular pneumatic tool are air pressure and air
consumption. The air in the compressor is maintained in psi (pounds per square
inch) while a constant air flow at any given pressure is crucial for a tool to work
and it is measured in cubic feet per minute (CFM). If the pressure is increased, the
volumetric flow of air also increases. The output of a pneumatic motor is relatively
constant, when load increases, the speed decreases, and torque rises. While
specifying air input requirements of different tools, the air flow in CFM varies
while the pressure is maintained constant. Some commonly used pneumatic tools
and their air flow requirements are listed below:

 Pneumatic Drill, which does its job of drilling holes quickly with precision,
needs about 3-6 CFM airflow at 90 PSI pressure.
 Socket Wrench for lessening of hardened bolts in no time needs 2.5 to 3.5
CFM for the wrench of ¼” dia. at 90 PSI pressure. And 4 to 4.5 CFM air
flow for 3/8” dia. also at 90 PSI pressure.
 Air Hammer to drive long thin nails needs only 0.3 CFM air flow at 90 PSI
 Angle Grinder which allows cutting or fine trimming of metals needs 5-8
CFM airflow at 90PSI pressure.
 Riveter for fastening of metals with a long metal rivet needs 4CFM airflow
at 90 PSI pressure
 Speed Saw for cutting of fine edges as it is easier to keep its movement
straight, needs 5CFM at 90 PSI pressure
 Sander smooths the rough edges and even exposed the fine grains as it
randomly moves in any direction, needs 8 – 12 CFM airflow at 90 PSI
It is important to note that specifications are made at the same air pressure. The
rate of air consumption thus plays an important role. The selection of right motor
calls for minimizing air consumption. Another crucial factor in deciding an air
motor is its speed. The speed or rpm rate decreases with the load administration, so
the motor speed is adjusted with a mix of planetary reduction gears. Pneumatic
motors have fewer moving parts, that makes them more compact, easier to handle
and maintain. Though a bit costlier, pneumatic tools last longer than corded or
cordless tools.

Introduction To Air Tools & How They Power New Age Commercial & DIY Tools

The tools which utilize the energy of the air to function are known as air or pneumatic tools. The advent of air tools has revolutionized the era of tools which faced many limitations in areas such as the force applied, the time taken, and often precision required in a task. With air tools, numerous possibilities of hand tools usage have emerged. From a small drill used by a dentist to attend a patient’s rotten tooth to power drills for cutting holes in masonry in construction work, air tools are unrivaled in performance. Compressed air pipes strung from the fittings is a common sight when you visit an assembly line, factory or workshop. Even in homes, you cannot miss paint sprayers, nailers, etc., which also function with air power.

air tools

The compressed air is an essential requirement for a pneumatic tool to operate. To generate compressed air, a variety of air compressors are available in the market. There are rotary screw air compressors, good for industrial and workshop applications. Piston air compressors work on the principle of positive displacement of air and driven either by an electric motor or gas engine. The compressors come with an air tank to hold a quantity of air within a pressure range. The power of a compressor is measured by the amount of air a compressor can deliver at a particular pressure. Pressure is a crucial factor in moving of air. At higher pressures, the amount of air, measured in cubic feet per minute, will also increase. Some pneumatic tool manufacturers use a term, `scam’, which denotes standardized cfm rating at the sea level with 65-degree Fahrenheit at 36 per cent relative humidity. Usually, air tools have cfm ratings at a specific pressure.

Pneumatic Tools constitute a vast array of power tools, energized by pressurized air. A significant advantage of using an air tool is that they are light, compact and easy-to-operate. Unlike other tools which function with a bulky motor encased in the handle, the motor of air tools sits with the compressor, separated away from the tool. An air tool can operate for longer periods without getting excessively heated. Pneumatic tools are rugged for working in harsh environment, requiring less servicing with fewer moving parts than other powered tools. Air tools are much safer than electrical tools as power cables often crack at pressure points, posing a threat of an electric shock to the operator while working in wet or damp conditions. Regarding power to weight ratio, air motors score over electric motors for better performance and higher productivity.

Compressed air is fed to an air tool to produce rotary movement with the help of vanes or a piston mechanism. A flywheel with a planetary gear reduction system can maintain high torque with a lot of speed reduction. In idling, the speed is maximum, and the torque is zero. When engaged, the flywheel delivers sufficient torque for the desired application. Air tools are rated for the job according to air flow required at a defined pressure to perform its task. The air requirement specifications in some essential tools can broadly be enumerated as:

  • Pneumatic Drill               3-6 cfm at 90 PSI
  • Speed Saw                      5- cfm at 90 PSI
  • Brad Nailer                      0.3 cfm at 90 PSI
  • Impact Wrench               2.5 – 10 cfm at 90 PSI
  • Riveter                             4 cfm at 90 PSI
  • Angle Grinder                 5 -8 cfm at 90 PSI
  • Sander                             8 -12 cfm at 90 PSI
  • Air Hammer                     0.3 cfm at 90PSI


Air Tools may cost you a little higher up-front, but you gain substantially by saving time, ease of work, reliability and increased productivity. These tools have sufficient power for a job you intend to do.

Growing Significance Of Cordless Tools

How did our predecessors ever manage without cordless power tools? In the last few years, there is a rapid development in charging time, battery life, ergonomics, and motor technology. Taking into account these enhancements, maybe it’s a good opportunity to retire your old yellow tools. With the huge selection readily available cordless tools it could be difficult to decide the most useful tools for your budget and as per requirements. However, one must serious understand their project need, usage and the extent they are ready to invest because cordless tool offers great flexibility but are low on turning power/torque.

Just a thought of a cordless variety of tools gives rise to many possibilities of their uses.  Cordless tools are not just handy but also highly durable with improved batteries to enhance work time per recharge. They now score over the corded tools which excelled due to the continuous power supply for uninterrupted operations. Lithium-ion technology currently powers almost all electronic devices and mobile power tools. Efforts are underway to achieve higher power efficiency, longer life cycle, improve safety & sustainability, and reliability. The energy density of a lithium-ion battery is typically more than nickel-cadmium based battery systems. A lithium-ion battery does not discharge like a nickel-cadmium battery towards the end of its cycle. The charging time of a lithium-ion battery, which earlier was in a couple of hours has been significantly reduced to 20 -30 minutes and is expected to come down further. Lithium-ion batteries marketed by many manufacturers are approximately been 20 per cent more powerful and deliver 40 per cent longer run time than those of lithium batteries sold four years ago.

Some other noteworthy improvements those have been affected by advancement in electronics to make cordless tools more popular among the workers, include more efficient brush less DC motors as there are no electrical and frictional losses. A DC brush less motor has a static armature with permanent magnets those rotate about and an electronic controller substitutes for the brushes. The design gives more torque to weight ratio, for higher output, reliability and long life. Electronics also protect power tools from overload and thermal burn-up faced by cordless tools of yesteryear. Cordless tools now have a battery gauge to know about the amount of battery power available to a user when he picks up a tool.

Cordless tools have brought a new-look to the work space. Earlier, many cords cluttering the workplace and pneumatic lines hanging from the ceiling in bunches above was a common sight. Much has changed now, with cordless tools line up by the recharging bay, you can see the workers performing their jobs without being tethered to anything.  The workers are free to move about doing their work without any inference of cords or compressed air lines attached necessarily with a compressor running to feed those. The battery of cordless tools is encased in the handle in a highly compact design. Though it makes the handle a bit bulkier, a user of cordless tools enjoys cleaner and hazard free work atmosphere.

The metal fabrication jobs are more complex than it was a decade ago. Many manufacturing and fabrication operations can be achieved just because the cordless tools are there. The portability of such devices just opens a new arena in metal fabrication to face new emerging challenges. By cutting the cord, you are free to take your tools anywhere you desire. You get a large variety of sizes and power in cordless fasting tools, like drill drivers, impact wrenches, and hammer drills, that provide a great convenience to handle an outside installation job in just a few minutes. An array of cordless tools includes cutters, grinders polishers, paint sprayers for value-added field services.

Cordless tools are becoming more attractive to DIYers, as well as, assembly line workers as these devices are lightweight, compact, powerful, and have relatively better run-time. These cordless tools are now available in various sizes and capacities to perform according to needs of a job. These devices are becoming standard implements for different trades by replacing corded and pneumatic tools. With the technology of cordless tools still improving with the inclusion of newer technologies, it is possible that many new devices would be added to the existing

Why Impact Wrenches Are A Must Have Tools For Every DIY-er

Removing of corroded nuts and bolts become incredibly frustrating due to wastage of precious time. Exposed to various climatic conditions over a period, some chemical bonding takes place, making the task of unscrewing the rusted nut, a very difficult task. Even sawing those off might again be tricky due to tight work space. The outcome is excessive time has to be devoted to a relatively straightforward job. The need is to apply right force to have it undone. An Impact Wrench is an answer to your problem. It delivers adequate power than used by hands to speed up loosening and tightening of fixings.
An Impact Wrench significantly reduces the effort and time required to do a job. It is designed to deliver high torque output in short bursts, deriving energy stored in rotating mass. Since the force is applied for a short time duration, much larger torques can be generated. Impact Wrenches are increasingly being employed by many industries, including automobile repairs, construction projects, heavy equipment maintenance and product assembly. Often called a `pulse tool’ it can deliver the right amount of torque needed in assembly or disassemble jobs while reducing the noise levels as compared to the use of hand held wrench. Impact Wrenches can be convenient tools as it results in less fatigue and strain to users.

While compressed air is the most common power source, electric and hydraulic power is also used by impact wrenches. The electric wrenches are either corded to the electricity supply or cordless with a powerful battery affixed to the handle. Initially, Air Impact Wrench was used by race mechanics to remove and refit the wheel nuts at an incredible speed. This type of impact wrenches is used by professionals. It requires an air compressor for large air supply and frequent maintenance for fail-safe use and not suitable for infrequent or home use.

The cordless variety is gaining currency and becoming more popular. Cordless Impact Wrenches are handy, portable and powerful tools. With high voltage rechargeable batteries, this device can perform at the level of Air Impact Wrenches. Cordless Impact Wrenches san wire and can reach inaccessible areas with ease. Due to battery weight, they are bit cumbersome and costly. The cordless type of Impact Wrenches is expected to become less expensive with improved and less massive battery packs in the coming time.

The corded Impact Wrenches are versatile tools as they are powerful and fast. They are less robust than air compressed air powered variety. They are often less expensive than other two types and more suitable for home use where an electric supply is always nearby.

At almost every mechanic’s shop, you may find an air compressor to drive an impact wrench. Impact wrenches are usually available in every standard socket drive size, from small 0.25” for small assemblies and disassemblies, up to 3.5” for large drives used in construction activities. It’s hard to specify the exact size of fitting as it is a function of torque rather than size. Some corroded fixings may require more torque to release it than new clean fixing. However, fixing of small bolts with excessive impacting can easily break them, making the task more arduous. A low torque may be applied to set the fastener little lightly, and final tightening can be performed with a hand-held wrench.

An Impact Wrench saves you time and energy otherwise required with use of an ordinary wrench. For removing some old stubborn fixings usually encountered in in automobile repairs, impact wrenches have brought a significant difference. For an effortless way to do a task without the excessive fatigue, Impact Wrenches are becoming indispensable.

Learn How To Make Your Cordless Tool Batteries Last Longer Here!

The market is flooded with numerous brands and types of cordless power tools, chargers, and batteries. Spending your hard earned money on these devices is quite easy but on the contrary to get money’s worth features is quite difficult. Understanding the suitable way to use and take care of your cordless tools could be the big distinction between a lithium-ion battery that stops working after a year and one that continues to go strong after three. Continue reading for tips in this particular buyer’s guide that will assist you to get the most from your cordless tools.

Don’t Go For Cordless Tools If You Are Going To Use Once In A Year.
Cordless tools used to be unwieldy, massive monsters donning fat nickel-cadmium batteries. However the recent years, tool manufacturing companies have trimmed their products down with sleek, longer enduring lithium-ion cells. It all depends on your usage- if you are going to use the cordless power tool for occasional DIY projects and house works like hanging photos, fixing cabinets, curring odd plywood board, then corded tools would suffice.
Getting rid of your power cord means increased freedom and portability. Un-tethered from the wall socket, there’s no limitation to how far you can move, power-tools in hand. Also, you don’t need to fret about tangling the wire all around step stools, ladders, or your legs and arms. As well as the tool kits meant to couple with them provide a range of add-ons that provide the same body and battery, saving both amounts of money and room vs. purchasing a host of additional standalone instruments. Nevertheless, even expensive, heavy-duty cord-free tools could be light on performance. We’ve also discovered it’s not essential to pay extra for lithium-ion batteries, although their lighter weight and longer run time helps– and they’re without a doubt the most popular type today.

Ways To Make Your Lithium-Ion Battery Last Longer

Try not to discharge it completely
Operating a lithium-ion battery up until it’s totally discharged can result in an ahead of time death. Try not to discharge it less than 20 percent before charging it. Recharge it when you observe even the smallest decrease in performance. Don’t wait up until your tool has ceased working.
Recharge It At The Correct Temperature
The optimal temperature range for recharging lithium-ion batteries is 40 to 85 degrees F.
Charging them at severe temperatures (below 32 degrees F and above 105 degrees F) disrupts the chemical reaction occurring in the cells and can lead to a permanent decline of run-time. Keep your battery charger indoors or in the cover.
Charge It Regularly
You might have listened to that it’s ideal to charge electric batteries only when they require it. Not correct. Regular charging is perfect for them, even when they’re only partly discharged.
Keep It Partly Charged Where It’s Cool (but Not Freezing).
Lithium-ion batteries typically last three to five years if stored correctly. Extreme temperature levels shorten their life cycle, so don’t keep them in your vehicle, garage or fridge freezer. Store them in a cool location, like your garage or fridge, at about 40 pct charge. This limited charge keeps the electric battery and its protection circuit working during storage space.
Use Your Batteries Routinely
Do not buy an extra battery and keep it for extended periods. The battery will deteriorate more rapidly if it’s not used a minimum of every few months. If you have two, make certain to use them both.
Purchase Fresh Batteries
Lithium-ion batteries have a limited life expectancy. They begin to slowly break down, right after they’re manufactured, so it’s essential to acquire the freshest batteries available. Check the date code on the battery or stock packaging to make sure you’re purchasing a new battery (rather than one that’s been resting on a distributor’s shelf for a year).