sourcing map 17.5mm Reduced Shank Cemented Carbide Twist Drill Bits for Hardened Steel Stainless Steel, 1/2 Inch Straight Shank

Descriptions:
1. Twist drill bits are made of cemented carbide tip for easier drilling into any hard objects, long service life, it is more sharp and durable than others.
2. Milled U-flutes with deep-cut spiral deliver fast material removal. Suitable for drilling in tough metal, including abrasive alloy and hardened steel.
3. Cemented carbide drill bit can clean, accurate hol...