If a tool gets worn from heavy use or damaged from overloading, most users will simply send it in for repair or replacement. However this process can take a couple of days to complete. In order to maintain productivity, many of our industrial customers will keep repair kits on hand for the various tools their workers use. This lets them make repairs right away and minimize downtime. We make repair kits for a number of different tools. These include repair kits for every ratchet that we sell - including our round head, spud and torque ratchets - as well as for other tools like hex bits, chisel and punch holders, pliers, chain wrenches and compression gauges. Ratchet repair kits are designed to replace the internal moving parts located inside the ratchet head. All of our ratchets have been designed to make the repair easy. The user need only remove the retaining ring and cover plate on the ratchet head, slide the existing components out and slide the new ones in. Of course, the best way to minimize the need for repairs is through proper maintenance. Ratchets should be periodically disassembled, have the internal components cleaned with parts cleaner and lubricated with light oil. We suggest that heavy users do this on a monthly basis. Proto® Ratchet Repair Kit, 1/2 in Drive, For Use With: J5450FW 1/2 in Drive Classic Pear Head Ratchet