Open-end head with 5/16" square drive, J-shank

Characteristics
• Open-end head with 5/16" square drive that fits interchangeable head torque wrenches with a "J" shank
• Interchangeable heads allow for torque capacity with adjustable torque wrench bodies
• Designed for use with CDI preset and adjustable interchangeable head torque wrenches
• Match the shank head size to the same shank size as the wrench it will be used with. Specifications Shank (diameter) J (0.425 in) Center of fastener to retaining pin QJO Series: 2.50 in Maximum recommended working torque, ft-lbs 9 OD, in 2 1/32 Size, in 5/16 Country of origin USA Head depth, in 1 1/64 Finish Industrial finish Warranty Lifetime warranty, non-repairable, guaranteed for materials and workmanship/while the purchaser owns the tools. Warnings For complete warning information, see CAT1600 pages W1-W4