... and precision Optimal high torsion and excellent wear-resistant 1/4"DR Star 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:E4,E5,E6,E7,E8,E9 ... , we will try our best to meet your requirement 1/4" DR Star Socket Wrench CR-V RT-9206