electric impact wrench 12V IMPACT WRENCH Material:ABS,Zinc ... :6.9AMPMax Torque:250FT-LBS(340N/M) Socket Sizes:11/16"(17mm),3/4",13/16"(21mm),7/8"(23mm ... Have proved: CE-CMC/CE-MD/ROSH, Letter of patent12V Electric Impact Wrench Product Featurea. Most fashion-forward, mini appearance: ... sizes six point sockets: 17mm, 19mm, 21mm, and 23mm.h. Operation simple, no time to study.i. Saving your effort ...