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Snap-on IMD422 | Flank Drive Shallow Impact Socket 3/4" Drive | 1-5/16", 12-Point
Part Number : IMD422
The IMD422 is a 1-5/16" 12-Point shallow impact socket with a 3/4" square drive, 2-1/4" long overall with an opening depth of 7/8". 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 2-1/8" across, drive end 1-3/4" across, bolt clearance depth 1-1/2"
- Applications noted include heavy-duty trucks, off-road equipment and most diesel engines such as Caterpillar and Cummins, along with head bolts and bearing cap bolts
- Hex depth lets the socket begin threading a nut onto a stud; Snap-on contrasts this with deeper-hex sockets that need the nut started by hand
- Heat treatment gives lower hardness than hand sockets, aimed at repeated cycling loads from impact wrenches
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