Adjustable Pin Wrench

This is a very specific-function tool that we are including just because finding a good one is extremely rare. Some handheld power tools, like grinders, use a fixing nut on the end of a shaft. But instead of the familiar hex shape, some have a smooth round shape, with two recessed holes on the surface for a pin wrench to engage. This design allows the nut to be very thin. If you lose this special wrench that came with your tool, it's tough to find a decent replacement.

Here it is—a real life-saver. Opens from 3/8" to 1-9/16".