Carbide Tipped HSS Twist Drill Bits for Hard Metal

Technical Data

1. Material & Hardness: HSS (M2/M35) shank + tungsten carbide (WC-Co) tip. Tip hardness ≥90 HRA, shank hardness 63-66 HRC, heat resistance up to 800°C.
2. Dimensions & Structure: Diameter 1-20mm, straight/reduced/hex shank, 118°/135° split point, 2 spiral flutes, brazed tip for firm connection.
3. Specs: Complies with DIN338, surface with black oxide/bright finish, suitable for materials up to HRC55.

Advantages

1. Carbide tip ensures extreme wear resistance, handling hard materials (e.g., hardened steel, ceramics) ordinary HSS bits can’t.
2. HSS shank balances toughness, avoiding breakage under torque; carbide tip retains sharpness for long service life.
3. 135° split point self-centers to prevent deviation, spiral flutes enable efficient chip evacuation, reducing clogging.
4. Versatile compatibility with drills/CNC machines, combining precision and durability for heavy-duty drilling.