Important selling point High forging with high concentricity and size matching Usage scenario Can be used for drilling / twisting / wrenching functions Product features Internal strong magnet that stably adsorbs the batch head to it from falling off; use four square shaft; efficient disassembly and assembly functions; high temperature quenching, high hardness and wear resistant chromium steel alloy forging User group People who use electric wrenches expression This product is a great addition to your toolkit you are an efficient way to use your electric wrench for drilling / twisting / wrenching functions, Manufacturer: Mekalero