Product Specifications:
This black‑coated solid carbide drill bit is engineered for high‑speed drilling in hard materials without internal coolant. The 140° point angle resists chipping on entry and reduces thrust force, making it ideal for stainless steel, alloy steel, and cast iron. The black TiAlN/TiSiN coating provides exceptional heat resistance (up to 1100°C) – crucial when external coolant cannot reach the cutting edge as effectively as through‑coolant drills.
The 10mm diameter drill features an overall length of 80mm and a 30mm flute length (3×D), making it suitable for shallow to moderate depth holes in precision parts. The ultra‑fine grain carbide substrate (HRA 92) delivers high edge strength and wear resistance. Recommended cutting parameters: 70‑110 m/min cutting speed, 0.15‑0.25 mm/rev feed. For best results, use high‑pressure external coolant or mist.
Unlike through‑coolant drills, this tool offers a lower cost alternative for applications where internal cooling is not available. Common uses include automotive brackets, pump housings, and general machining of hardened steels. Custom lengths and coatings (AlCrN, DLC) are available for OEM orders. Upgrade your drilling of tough materials with this black‑coated carbide drill.
📏 Standard sizes are listed on our size chart page. Need a non‑standard diameter, length, or shank? Custom sizes are also available – just tell us your requirements.
