... impact resistance. 2.Advantages: Factory direct price 151PCS 1/4" & 3/8" & 1/2" Dr Socket Wrenches Set SPECIFICATION DETAILS:10PCS-1/4" DR. METRIC SOCKETS : 4,5,6,7 ... ,8,9,10,11,12,13MM10PCS-1/4 ... ,4,5,6,8,10 T20,30,40,45,50,55,60 1PC-BLOW CASE 151PCS 1/4" & 3/8" & 1/2" Dr Socket Wrenches Set