【Product Name】The NACHI G-Coated HSS Morse Taper Shank Drill (Model: 620P) is a high-torque tool engineered for professional-grade large-scale drilling. It primarily addresses rapid edge wear, material welding, and thermal issues encountered during large-diameter stainless steel machining.

【Key Features & Benefits】

• G (TiN) Coating Technology: Features premium TiN treatment that boosts surface hardness and lubricity. This is a practical recommendation for preventing built-up edge (BUE) in ISO M materials (Stainless Steel), supporting stability up to HRC40.

• Morse Taper Shank Stability: The tapered shank provides superior friction contact for maximum torque transmission. It ensures the drill remains locked in the spindle or tailstock during aggressive heavy-duty drilling cycles.

• 118° Point & 32~34° Helix: The classic point geometry combined with an optimized helix ensures efficient chip lift. This is critical for managing the tough, stringy chips of stainless steel that often cause overheating in standard bits.

• Optimized for Heavy-Duty Reach: Designed for workshops processing large structural components, offering higher cutting speed capability and consistent dimensional accuracy compared to uncoated tools.

【Applications & Usage】

• Primary Applications: Ideal for lathe tailstock drilling and radial drills, especially for large-scale stainless steel flanges and mechanical components.

• Recommended Materials:

  • ISO M (Stainless Steel): Tackles thermal friction in SUS304, SUS316, and SUS420.

  • ISO P (Steel): Delivers extended tool life for structural and alloy steels under HRC30.