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A detailed buying guide: how to choose a pneumatic screwdriver.
This section covers pneumatic screwdrivers — pistol-grip and inline models that use compressed air to drive and remove screws, self-tapping screws and small bolts. They are used in assembly shops, furniture, electrical and metal-structure production, car workshops and other production lines where repeatable, uniform tightening is needed. An air screwdriver is light, does not overheat in long shifts and carries no risk of electric shock or sparks, but it needs an electric or petrol compressor with matching air delivery.
Pistol-grip models suit horizontal work and higher torque, while inline models suit vertical assembly, tight spaces and small fasteners. Angle-head versions are also available for hard-to-reach points. See what pneumatic tools are and how they work.
Air screwdrivers typically consume 110–300 l/min at a working pressure of 6.2–6.3 bar. The real output of the compressor should exceed the tool consumption by at least 20–30%. Read how to calculate compressor air delivery and how to choose compressor working pressure.
Small screws need 1–5 N·m, while self-tapping screws and bolts need 8–20 N·m or more. An adjustable slip or shut-off clutch stops tightening at the set torque and protects the thread. More powerful models consume more air, so choose a compressor with reserve capacity. See how to choose an air compressor.
Speed is usually 800–2000 rpm, and reverse lets you remove fasteners quickly. Push-to-start models run only when the bit is pressed against the screw, which reduces air consumption and the risk of accidental start-up. See how to use pneumatic tools safely.
Most tools have a 1/4" air inlet thread fitted with a EURO, ORION or RAPID type quick coupler. Make sure the coupler matches your hose and compressor system and that the hose inner diameter is 6–8 mm. Read how to choose an air hose and quick couplers.
The vane air motor is sensitive to moisture and dust, so fit a filter, regulator and lubricator in the line or add a few drops of oil to the inlet every day. Drain condensate from the compressor tank regularly. Read how to prepare compressed air: condensate, filters, regulators, and lubricators and how to store and maintain an air compressor.
Choose a model with a light body, comfortable grip and rear exhaust that directs air away from your hand and the workpiece. Air tool noise can reach 80–90 dB, and exhaust air raises dust. See how to choose safety glasses and how to choose hearing protection.
Disconnect the air supply before changing the bit, do not exceed the permitted pressure and check hoses and couplers regularly. Vanes, clutch springs and seals are wear parts that can be replaced. Read how to use an air compressor safely and how to choose spare parts for pneumatic and hydraulic tools.
At ToolsArmenia you can compare pneumatic screwdrivers by type, torque, clutch, speed, air consumption and weight and choose the right model for your assembly work.
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