Flank Drive® 21mm Metric 12-Point Shallow Impact Socket with 1/2" Drive

Characteristics
• Snap-on® impact sockets are heat-treated to optimize impact life with a lower hardness than manual sockets and are able to withstand repeated cyclic loads from impact wrenches.
• Snap-on uses a proprietary blend of special alloy steel for sockets that provides long life and strength. The Flank Drive® wrench system delivers up to 20% more turning power without slipping or rounding, while exceeding ANSI® performance standards. Specifications Dimension C, Bolt Clearance Depth, mm 21.0 Dimension B, Drive End Diameter, mm 31.5 Country of Origin USA Size, mm 21 Dimension E, Opening Depth, mm 14.2 Dimension D, Length, mm 38.1 Dimension A, Socket End Diameter, mm 31.5 Finish Industrial Finish Style 12-Point Sets Warranty Lifetime Warranty, Non-Repairable, Guaranteed for Materials and Labor/For As Long As the Purchaser Owns the Tools. Warnings For complete warning information, see pages W1-W4 of CAT1600.