The Bolt-Up System Barrel Nut Wrench is a proprietary spanner wrench required to install our Bolt Up System Barrel Nut. This wrench is designed to be used with a 1⁄2 Drive Torque Wrench
The heavy duty RIS wrench is made to last for over 100 barrel nut tightenings and losenings. If you have used the regular RIS wrench, and it bent, you will appreciate this wrench. It is much thicker and meant to last.