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Snap-on IM443 | 1-Inch Drive 6-Point SAE Flank Drive Shallow Impact Socket | 1-3/8", 1" Drive
Part Number : IM443
Designed for impact wrenches, the IM443 fits 1-3/8" fasteners with its 6-point Flank Drive socket. It sits on a 1-inch square drive and is a shallow pattern, 2-1/2" in length.
Outside diameters are 2-1/8" at the hex end and 2-1/8" at the drive end. Snap-on specifies the sae size in inches.
Key features
- Hex depth 7/8"; hex end diameter 2-1/8"; drive end diameter 2-1/8"
- Overall length 2-1/2" with 1-15/16" bolt clearance depth
- Opening size: 1-3/8", 6-point
- Flank Drive profile, rated by Snap-on for up to 20% more turning power without slipping or rounding
- Heat treated for repeated impact loading, at a lower hardness than hand sockets
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