M7 NC-6255Q 3/4-Inch Twin-Hammer Air Impact
The M7 NC-6255Q moves to a 3/4-inch square drive while retaining a pistol-grip layout. Its twin-hammer mechanism, magnesium-alloy front and rear covers, and composite body are listed construction details to compare alongside the direction-specific torque ratings.
Specifications and included details
- 3/4-inch drive, twin-hammer clutch and listed 1-inch bolt capacity.
- 200–1,100 ft-lb forward torque; 1,400 ft-lb maximum reverse torque.
- 7.031-inch body length; magnesium-alloy covers and composite body.
- 8,500 RPM free speed, 4.8 CFM average consumption and 90 PSI specification.
Before ordering
Match sockets to the 3/4-inch drive and allow space for the complete tool and hose. Check sustained air requirements in the manual rather than selecting a compressor solely by average consumption. Verify required final fastener torque independently.
Product questions and answers
Is the drive 1 inch because bolt capacity is 1 inch?
No. The square drive is 3/4 inch. Bolt capacity is separate from both drive size and socket opening.
Is 1,400 ft-lb the forward maximum?
The listing identifies 1,400 ft-lb as maximum reverse torque. Forward torque is listed as 200–1,100 ft-lb.
Does twin hammer establish a calibrated torque output?
No. It describes the impact mechanism. Use a suitable torque wrench for a specified final tightening value.
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