Standard: Jobber length, screw machine length, taper length
Carbide twist drills:
1. Manufacturing process: Rolled, milled or fully ground.
2. Point angle: 118degree or 135degree Split point
3. Finish: Bright, black oxide, black & gold, polished, coffee, Ti-coated
4. Diameter: 1-25mm
5. Shank: Straight shank, taper shank, hex shank, reduced shank
6. Material: Carbide (K10, K20, K05, K01), . HSS, HSS-CO, M2, M42, M35
7. Suitable for cast iron, carbon steel, alloy steel, stainless steel, non-ferrous metals under 25-55HRC...

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