1/2” (12.7 mm): 10, 11, 12, 13, 14, 15, 17, 19, 21, 24 mm (L=38 mm); CrV 50BV30;
1/2” (12.7 mm); (127 mm); CrV 50BV30;
1/2” (12.7 mm); (255 mm); 72T; CrV 6140