This fits your .
577-2627SW Features: -Box opening remains on fastener when wrench is struck. -Efficient transmittal of force to fastener. -For where extreme force is needed to loosen or set large fasteners. -Heavy box walls provide greater torque transmission. Use: -Box End Wrench/Striking Wrench. Size: -11/16". Quantity: -Single. Number of Points: -12. Measurement Type: -SAE. Product Type: -Wrenches. Dimensions: Overall Product Weight: -4.8 Pounds.
Stanely Proto Striking wrenches are engineered for the most demanding uses. The box opening is designed to remain in place on fastener when wrench is struck. Designed for heavy use in close quarters where hammer or sledge is required to loosen frozen nuts or set large fasteners.
Stanley Proto J2627SW Heavy Duty 12 Point Offset Striking Wrench 1-11/16 Inch - B000249Y6A