We produce all kinds of HSS twist drill bits. The details include:

1) standard: DIN338, DIN1897, DIN340, ISO235, ANSI B94. 11M, DIN345, DIN 1870

2) Material:  HSS 4241, HSS 4341, HSS 9341, M2(6542), M35,

3) Manufactory process: roll forged, edge ground , fully ground , milled

4) Point angle : 118 degree, 135 degree split point

5) Surface finished: bright finished , black oxide , tin oxide , black flute & bright shank , rainbow

6) Flute type: N or VA

7) Shank: straight shank drills , taper shank drills , reduce shank drills , 1/2” shank drills , hex shank drills