Upgrade your cordless impact wrench with this 3/8" Impact Retaining Ring Clip set. Designed for a secure and snug fit, these retaining rings with O-rings ensure your sockets stay firmly in place during tough jobs. Made from durable materials, this 6-pack set includes a handy retainer ring anvil install tool for easy installation. Compatible with cordless impact wrenches, these retaining clips provide a reliable solution for preventing socket detachment, ensuring efficient and safe operation. With their compact size, they're a must-have accessory for your toolbox. [ Package Includes ] : 5 sets of 3/8" Square drive socket retainer rings with O-ring [3/8" Anvil Retaining Ring Install Instruction]: Step 1:Install new o-ring. Step 2:Place retaining ring into install tool recess. Step 3:Insert anvil into retaining ring at a 45°. Step 4:Push and bring the anvil perpendicular. Specifically designed to fit Milwaukee type 3/8" cordless impact wrench.