... , etc.3.Drive type: Slotted, Phillips, Hex Socket, Torx, ” type, One Way etc.MaterialCarbon steel, stainless steel, SS-304, SS-302, Aluminum ... /SX & H series, Tapping machine Dongrong/EF. Other machines including Spring machine Jinju & 502S, Shaft machine Liqiang ,Auto lathes Libo & XB ...