Flank Drive® 21mm Metric 6-Point Deep 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 dies that provides long life and great strength
• The Flank Drive® wrench system delivers up to 20% more turning power without slipping or rounding while exceeding ANSI® performance standards. Specifications: Dimension E, Hex Depth, mm 13.5; Dimension C, Bolt Clearance Depth, mm 57.9; Dimension B, Drive End Diameter, mm 31.8; Country of Origin: USA; Size, mm 21; Dimension D, Length, mm 82.6; Finish: Industrial Finish; Dimension A, Hex End Diameter, mm 31.8; Style: 6-Point Sets; Warranty: Lifetime warranty, non-repairable, guaranteed for materials and workmanship/while the purchaser owns the tools. Warnings: For complete warning information, see pages W1-W4 of CAT1600.