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