... DrillProduct Description:We produce all kinds of HSS twist drill bits,the details include:1. Standard: DIN338,DIN1897 ... Process:Roll forged,Edge ground,Fully ground,Milled4. Point angle: 118degree,135 degree split point5. Surface finished: Bright ... drill bits, Flat wood boring bitApplication:1.drill cast steel2.malleable iron3.sintered metal4.non-ferrous metals5. wood and so on cnc twist drill ...