Wheeler&';s Delta Series Professional Armorer&';s Wrench is designed to be the last wrench you&';ll need for building your perfect rifle. This tool is what every gunsmith or armorer needs to be able to build or repair their AR-15. It&';s constructed from the highest quality materials delivering you the best performance for all your gunsmithing needs at a great value, and includes 6 different essential AR tools. The handle has torque measurements included on the handle for accuracy with every build.