... precision Optimal high torsion and excellent wear-resistant 1/4"DR Socket WrenchHigh hardness, tenacity and precision ... plated (mirror plated or sand finished)2. Type:1/4" drive, hand tool Parts 3.Materials:50BV30 ... 9,10,11,12,13,14mm;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 ... 11/322513.9RT-920210103/82516.8 RT-920211 13/32 25 16.4RT-920212117/162522.6RT- ...