| HSS Twist Drill Bits |
| Manufacturing | Surface Finish | Sharpening |
| White | Black | Black&White | TIN Coated | Amber | Black&Gold | 180° | 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 |
| Helix Angle | Type N, Type W, Type H |
| Rotating | Right Hand, Left Hand |
| Flute | Normal Parabolic |
Complaint
