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| HSS Twist Drill Bits Overview | ||||||||
|---|---|---|---|---|---|---|---|---|
| Manufacturing | Surface Finish | Sharpening | ||||||
| Process | White | Black | Black & White | TIN Coated | Amber | Black & Gold | 118° | 135° |
| Roll Forged | √ | √ | √ | √ | ||||
| Rolled Polished | √ | √ | √ | √ | √ | √ | √ | |
| Fully Ground | √ | √ | √ | √ | √ | √ | √ | √ |
| Milled | √ | √ | √ | √ | √ | √ | ||
| Standards | DIN338, DIN340, DIN1897, DIN1869, DIN345, DIN341, Jobber Length, Taper Length, Screw Machine Length, Aircraft Extension, Taper Shank(ANSI) |
| Material | HSS4241, HSS4341, HSS9341, HSS6542(M2), HSS CO5%(M35), HSS CO8%(M42) |
| Shank | Straight Shank, Taper Shank, Three Flats Shank, Hexagonal Shank, 1/2" 3/8" Reduced Shank |











Specialized in producing high speed steel twist drills, masonry and SDS hammer drills, wood drills and other cutting tools. We can process all kinds of non-standard drills depending on the requirements of our customers.
Quality Control: With strong technical force & modern means of testing, all products are according to international standard and customer requirements. We have passed ISO9001:2008 Quality System Certification.
Payment: L/C, T/T, D/A, D/P, Western Union, PayPal
Shipping: DHL, UPS, FEDEX, TNT, EMS





