Yellow Jacket 60616 Offset Service Ratchet Wrench HVAC Refrigeration Yellow Jacket Offset Refrigeration Service Ratchet Wrench part number 60616. Knuckle saver design for convenience in tight areas. Reversible Ratcheting Square opening 1/4 and 3/16 at one end; 3/8 and 5/16 inch at other., Weight: 0.15 pounds, Manufacturer: ximoon