NS Small drill for hardened steel processing MSDH Φ0.85X8.5 MSDH 0.85X8.5 1 piece

Catalog number: MSDH 0.85X8.5 Features: ● Small diameter drill allows drilling into hardened steel 65HRC. ● Hole diameter with little variation and stable long life. ● High hardness steel drilling is possible by cutting from φ0.1. Applications: ● Workpiece: Hardened steel (up to 65HRC). Specifications: ● Blade diameter (mm): 0.85 ● Groove length (mm): 1.7 ● Total length (mm): 45 ● Shank diameter (mm): 4 ● Effective machining depth: 10D (blade diameter x 10 times) ● Twist angle (°): 20 ● Surface treatment: Infinite micro coating ● Neck length (mm): 8.5 ● Infinite coating premium ● Twist angle 20° Material / Finish: ● Micro grain carbide