... :al-cu,be-cu size:10~22mm non sparking socket set 15pcs matetial:al-cu ,be-cucontents:socket wrench:6mm,8mm ... ,10mm,11mm,12mm,14mm,17mm,19mm,22mm,24mm,27mm,ratchet wrench bent handle,socket extension barface treatment :paintingitem material non ... sparking tools,special tools,and antimagnetic tools. non sparking socket set 15pcs