... tenacity and precision Optimal high torsion and excellent wear-resistant 1/4"DR Socket WrenchHigh hardness, tenacity and precision ,Hand Tool ... : chrome plated (mirror plated or sand finished)2. Type:1/4" drive, hand tool Parts 3.Materials:50BV30 4.Size ... 10,11,12,13,14mm;Inch:5/32,3/16,7/32,1/4,9/32,5/16,11/32,3/8 ... ,13/32,7/16,15/32,1/2,9/16"; 5. Specification & Packing Sheet: ...