Accupro 4500327 6.00mm Carbide Drill Bit 140 Deg Tialn

Product Description

The ACCUPRO 4500327 is a screw machine length drill bit designed for high-performance drilling in demanding production environments. Built from solid carbide and coated with TiAlN (titanium aluminum nitride), this bit handles stainless steels and other hard-to-machine materials with consistent performance. The 140-degree web-thinned point reduces thrust at entry and improves centering without a separate spotting operation. At 66.00 mm overall length with a 28.00 mm flute length, this is a stub-length geometry intended for rigid setups in CNC machining centers, lathes, and drill presses where minimizing deflection is a priority. Machinists and tool-and-die professionals running stainless, alloys, or hardened materials will find this format practical for through-hole and blind-hole applications requiring tight tolerances.

This drill bit is suited for high-cycle production drilling on CNC machining centers and manual drill presses. Its primary target workpiece material is stainless steels, making it a common selection in fabrication shops, aerospace component work, and precision manufacturing where tool longevity and hole quality matter. The 3xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes. Coolant-through capability allows internal coolant delivery directly to the cutting edge, extending tool life and improving chip clearance in deep or interrupted cuts.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating improves heat resistance and extends tool life at elevated cutting speeds
• 140-degree R-thinned web point reduces entry thrust and self-centers on the workpiece
• Coolant-through design delivers coolant directly to the cutting zone for deep-hole applications
• Straight cylindrical shank at 6.00 mm diameter fits standard collets and drill chucks
• Right-hand cut, regular spiral flute configuration for conventional CNC and manual setups

Compatibility

Designed for use in CNC machining centers and drill presses accepting a 6.00 mm straight shank, within the series ASSC140-TA-CL per DIN specification. Intended for workpieces in the stainless steel category; suitable for other ferrous and non-ferrous materials within the 5.00 mm to 6.50 mm drill bit size range where TiAlN-coated carbide tooling is appropriate.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling and applicable shop safety practices. Secure the shank fully in a collet or drill chuck rated for the shank diameter before operation, and verify runout before beginning a production run. Solid carbide tooling is brittle and susceptible to chipping from interrupted cuts, side loading, or improper feed rates — do not force entry or use in worn spindles with excessive runout. When using coolant-through capability, confirm the machine spindle and toolholder support through-coolant delivery at the required pressure.