Accupro 4500444 Drill Bit 17mm Solid Carbide Tialn

Product Description

The ACCUPRO 4500444 is a screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. Built from solid carbide and coated with TiAlN (titanium aluminum nitride), this bit delivers superior heat and wear resistance compared to standard HSS tooling. It features a 17.00 mm diameter, a 140-degree split point angle, and a right-hand spiral flute with R-thinned web geometry. The TiAlN coating allows sustained cutting speeds in abrasive and high-temperature environments. Machinists and tool-and-die professionals select this bit for precision work requiring tight tolerances and consistent hole quality.

This drill bit is designed for use in CNC machining centers, drill presses, and manual milling operations where controlled, accurate drilling is required. Its primary workpiece material rating is stainless steel, making it well suited for fabrication shops, aerospace component work, and industrial manufacturing environments where stainless alloys are common. The straight-cylindrical shank provides secure chuck engagement across standard toolholding setups. The screw machine length (stub) configuration offers increased rigidity over jobber-length bits, reducing deflection in deep-entry situations.

Key Features

• Solid carbide construction for maximum rigidity and tool life in hard materials
• TiAlN coating increases surface hardness and heat resistance for extended cutting performance
• 140-degree point angle reduces thrust and improves self-centering on entry
• R-thinned web reduces cutting resistance and improves chip evacuation
• Coolant-through design supports internal coolant delivery for heat management in deep-hole drilling
• 2-flute regular spiral geometry optimized for stainless steel and other difficult-to-machine alloys
• DIN specification designation ensures dimensional conformance to international standards

Compatibility

Rated for primary use in stainless steels. Designed as a high-performance replacement for standard screw machine length carbide drill bits in the 17.00 mm diameter class per DIN specification.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling. Secure the straight-cylindrical shank firmly in a properly sized chuck or collet before operation to prevent runout. Always verify spindle speed and feed rate recommendations for carbide tooling in the specific workpiece material before cutting. Coolant-through capability should be used when available to maximize tool life and manage heat in stainless steel applications.