Teng Tools 3/8 Inch Drive Air Impact Wrench - Twin Hammer Pneumatic Impact Gun, 465 Nm Max Torque, 9000 RPM - ARWM38
Air Impact Wrenches · ARWM38
3/8 Inch Drive Air Impact Wrench
Twin Hammer Pneumatic Impact Gun, 465 Nm Max Torque, 9000 RPM
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Why this one
Three-step torque control
Delivers 115 Nm, 285 Nm, and 465 Nm across three selectable power steps so you can match fastening force to the task at hand.
Twin hammer mechanism
The twin hammer design provides consistent, high-frequency impacts that translate to efficient fastening with reduced vibration transmitted to your hand.
Compact and maneuverable
At just 159.4 mm (approximately 6.3 inches) in overall length, this tool fits into tight engine bays, underbody spaces, and cramped industrial assemblies where larger guns simply cannot reach.
Bolt capacity and speed
Rated for fasteners up to M13 with a free speed of 9000 rpm, giving you rapid rundown times that keep your workflow moving on the shop floor.
Air supply specifications
Requires a 1/4 inch PT air inlet and a minimum 3/8 inch hose size, with air consumption of 3.7 cfm at 100 percent intermittent use.
Read the full description
Built for professional mechanics and industrial technicians, this 3/8 inch drive pneumatic tool puts serious fastening power in a surprisingly compact package. Three selectable torque steps — 115 Nm, 285 Nm, and 465 Nm — let you dial in exactly the output you need, from delicate trim work to breaking loose corroded fasteners.
The twin hammer mechanism delivers rapid, consistent impacts at a free speed of 9000 rpm, moving through bolt rundowns quickly while keeping vibration at 4.96 m/s squared and sound at 95.4 dB. With a bolt capacity of M13, it covers a broad range of automotive and industrial fasteners without requiring a larger, heavier gun.
Measuring just 159.4 mm (about 6.3 inches) long and weighing 1562 g (about 3.4 lb), the red and black pistol-grip body slides into confined spaces that stop bigger tools cold. Max reverse torque reaches 361 ft-lb, giving you the breakaway force needed when removal is the priority.
Air supply requirements are straightforward: a 1/4 inch PT inlet, minimum 3/8 inch hose, and 3.7 cfm at 100 percent intermittent duty. Connect it to your shop compressor and enjoy unlimited runtime with no batteries to charge — ideal for high-volume air tools applications where downtime costs money.
Whether you are servicing brakes, pulling interior panels, or assembling equipment on the production floor, this tool delivers the torque control and reach that keep professional workflows on schedule.
Specifications
| Drive | 3/8" |
|---|---|
| Length | 159.4 |
| Weight | 3.4 lb (1562 g) |
| Part number | ARWM38 |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
Shipping
Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.
Lifetime warranty
Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.
Returns
Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.
Why Teng Tools?
Swedish Design Since 1985
Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.
Shipped Fast from Texas
US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.
Lifetime Warranty
Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
The Devil Is in the Detail
Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.