... , tenacity and precision Optimal high torsion and excellent wear-resistant 1/4"DR Socket WrenchHigh hardness, tenacity and precision ,Hand Tool Parts ... or sand finished)2. Type:1/4" drive, hand tool Parts 3.Materials:50BV30 4.Size:Metric:4,4.5,5,5.5,6,6 ... 12,13,14mm;Inch:5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8,13/32 ... freely, we will try our best to meet your requirement 1/4" DR Socket Wrench CR-V RT-9202