Accupro 4500468 Taper Length Drill Bit 9/64 in Carbide

Product Description

The ACCUPRO 4500468 is a solid carbide taper length drill bit designed for demanding cutting applications in hard and abrasive materials. Built to a 9/64 inch (0.1406 inch decimal) diameter with a 140-degree split point, this bit delivers accurate starts and reduced thrust on entry. The TiAlN coating provides heat resistance and extended tool life in high-temperature cutting environments. A spiral flute geometry with R-thinned web improves chip evacuation and reduces walking at the point. This bit is intended for use by machinists, toolroom technicians, and maintenance trades working with precision metal fabrication or production drilling setups.

This drill bit is rated for high-performance drilling in stainless steel and similarly tough materials where carbide substrate and advanced coating are required. With a flute length of approximately 1.339 inches (34 mm) and an overall length of approximately 2.835 inches (72 mm), it fits standard drill chucks and CNC toolholding systems accepting a straight cylindrical shank with a 6 mm shank diameter. The 8xD flute-to-diameter ratio supports deeper hole applications while maintaining chip clearance. The right-hand cut direction is compatible with conventional drill press and machining center spindle rotation.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating resists heat buildup and extends cutting edge life
• 140-degree point angle reduces thrust and improves self-centering on entry
• R-thinned web reduces cutting resistance and walking at the drill tip
• Coolant-through design supports internal coolant delivery for heat management
• Straight cylindrical shank fits standard ER collets and drill chucks

Compatibility

Designed for use in materials including stainless steel. Accepts standard straight-cylindrical toolholding with a 6 mm shank diameter, compatible with CNC machining centers, drill presses, and manual mills equipped with appropriate collet or chuck systems.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or trained technician familiar with carbide tooling. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the bit from the toolholder. Carbide is brittle — avoid side loading, interrupted cuts without proper feeds and speeds, or dropping the tool. When using the coolant-through feature, confirm the machine spindle is rated for internal coolant delivery before engaging.