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Snap-on IMDFM21 | 3/8" Drive 12-Point Flank Drive Shallow Impact Socket | 21 mm
Part Number : IMDFM21
Sized at 21 mm, the IMDFM21 is a 12-Point shallow impact socket on a 3/8" drive, measuring 31.8 mm long. The hex end is 29.4 mm across and the drive end 29.4 mm, giving 17.8 mm of bolt clearance depth. It is intended for impact wrench service.
Key features
- 11.9 mm hex depth
- 12-Point, 21 mm hex opening
- Up to 20% more turning power from the Flank Drive system, which resists slipping and rounding
- Heat-treated for impact service, at a lower hardness than hand sockets
- The shallow hex starts the nut on the stud
- Ball- or pin-type retention through the drive side hole
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