... Combination Socket Tool Set is made of Chrome Vanadium, includes 1/4"Dr., 3/8"Dr. & 1/2"Dr. 175pc Combination Socket Tool Set 175pc Combination Socket Tool Set ... 's Materai: Chrome Vanadium SteelContains:12pc-Combination Wrench5/16,3/8,7/16 ... ,7/16",6,8,10,11MM1pc-Blow Mold Case 175pc Combination Socket Tool Set