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Snap-on IMM212A | Flank Drive Shallow Impact Socket 3/4" Drive | 21 mm, 6-Point
Part Number : IMM212A
The IMM212A is a 21 mm 6-Point shallow impact socket with a 3/4" square drive, 50.8 mm long overall with an opening depth of 15.2 mm. It uses the Flank Drive profile, which Snap-on states delivers up to 20% more turning power with less slipping or rounding, beyond ANSI performance standards.
Key features
- Socket end 34.9 mm across, drive end 41.1 mm across, bolt clearance depth 27.2 mm
- Shallow hex depth starts the nut on the stud, where deeper-hex designs call for hand starting
- Heat-treated for impact service life, with lower hardness than hand sockets
- Drive end has a side hole for ball- or pin-type retention
- Industrial finish listed by Snap-on for corrosion protection
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