Our jam nut wrenches are a cost effective option when looking for a large wrench to tighten the jam nuts on your build, or a compact wrench to keep in your tool box for trail repairs. This wrench is designed to fit a 1-1/8 hex, this is the standard jam nut hex size for 3/4 inch threads. A piece of 1-1/4 I.D. tubing can be slipped over the end of the wrench to be used as a handle, or a 3/8 drive ratchet can be inserted in the square hole to drive the wrench. This wrench is manufactured from 3/8 inch thick steel for strength and reliability. These are sold individually, and are bare steel.