The 3M™ service tool kit is a universal kit that contains all of the special tools needed to disassemble and reassemble the 3M™ orbital and random orbital sanders (sold separately). A comprehensive kit even when utilized properly, power tools do wear and need repair. When that happens, as in the case of 3M™ orbital and random orbital sanders, the 3M™ service tool kit is here to help. The kit includes all the pieces needed to remove the motor from the tool, disassemble the motor, remove and replace bearings and reassemble the motor. The comprehensive kit has all the parts needed to completely disassemble and assemble 3M™ sanders, so you don't have to go through the work of specifying or fabricating these essential items on your own. So what items, exactly, are required to remove, disassemble, rebuild and re install your 3M™ sander motor, the kit contains collars, wrenches, jigs and fixtures, bearing separators and adapters. All of these parts are specially sized to fit and match coordinating parts on the sander. Don't let a minor malfunction prevent you from getting important work done. With the help of this comprehensive kit, you can repair the tool and get back to the task at hand. Find 3M™ orbital and random orbital sander replacement parts.