ARP911 STANDARDIZATION OF DRIVE END OF HYDRAULIC OR GEARED TORQUE WRENCHES FOR USE TO AN UPPER LIMIT OF 500,000 INCH POUNDS

This recommended practice covers the dimensions of an inside splined driver-wrench adapter, envelope of the housing-wrench reaction, the mechanical method of adapting the driver-wrench adapter to the wrench adapter driven end, and the housing-wrench reaction to the holder-counter torque.