Williams 4-644 1/2 Drive Shallow Impact Socket, 6 Point, 1-3/8-Inch

The Snap-On JH Williams 4-644 1 3/8-Inch shallow impact socket has an overall length of 2-Inches and a 1/2-Inch drive. The super torque lobular openings are for greater turning power without deforming the fastener. This socket has been designed for maximum engagement on 6 point fasteners and is suitable for use with pneumatic and electric impact wrenches. It has been specially heat treated for impact use to provide long life, safety, and durability.