Hertel C.40W.0754 Taper Length Drill Bit 0.2969 in Hss

Product Description

The HERTEL C.40W.0754 is a taper length twist drill bit ground from high-speed steel (HSS) with a black oxide finish. It carries a 19/64 inch (0.2969 inch) diameter, a standard 118-degree split point, and a right-hand spiral flute designed to clear chips efficiently during drilling operations. The black oxide coating provides a mild layer of corrosion resistance and reduces friction at the cutting edge. At 6.375 inches overall length with a 4.0 inch flute, this bit offers greater reach than a jobber-length drill while maintaining the rigidity needed for accurate hole placement in metal, wood, and composite materials. Machinists, maintenance technicians, and fabricators are the typical installers.

This taper length drill is suited for general-purpose hole-making in production machining, maintenance and repair operations (MRO), and fabrication work where a standard jobber bit lacks the reach to clear deep stock or fixture setups. The straight-cylindrical shank accepts standard drill chucks on drill presses, CNC machining centers, and hand-held drills. Web-thinned geometry at the tip reduces thrust requirements and starting load, which is particularly useful when drilling through harder ferrous materials or thick-gauge steel plate.

Key Features

• 19/64 inch (0.2969 inch) diameter with matching straight-cylindrical shank for secure chuck retention
• 118-degree standard point angle with web thinning to reduce entry thrust and improve centering
• 4.0 inch spiral flute length provides extended reach beyond standard jobber-length drills
• Right-hand cut, regular spiral flute for efficient chip evacuation in through-hole and blind-hole applications
• Black oxide finish reduces friction and offers light corrosion resistance during storage and use
• HSS construction balances toughness and wear resistance across a wide range of workpiece materials

Compatibility

Designed as a general-purpose taper length drill bit compatible with any standard drill chuck sized to accept a 19/64 inch straight-cylindrical shank, including drill presses, hand drills, and CNC spindles.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend edge life and prevent work hardening. Always secure the workpiece with a vise or clamp before drilling. Wear appropriate PPE including eye protection in accordance with applicable shop safety standards.