Square head, round knurled body. Alloy steel hardened and tempered. Tips cupped and chamfered. Square head prevents rolling. Black phosphate finish. 4" long. 5 16" stock. No. 58 111: 1 32" tip No. 58 112: 2 32" tip No. 58 113: 3 32" tip No. 58 114: 4 32"