Hertel 79892634 Carbide Jobber Drill Bit Letter N

Product Description

The HERTEL 79892634 is a solid carbide jobber-length drill bit sized to letter N (0.3020 inches) with a 118-degree standard point angle. It is designed for precision hole-making in ferrous and non-ferrous materials where carbide hardness and dimensional accuracy are required. The bright finish is left uncoated to hold tight tolerances, and the web-thinned, tapered web construction reduces thrust at entry. At 3.75 inches overall length with a 2.375-inch spiral flute, this bit fits standard jobber-length drilling applications on the shop floor or in the field. It is suited for machinists, maintenance technicians, and fabricators working with drill presses, CNC equipment, or hand-held power tools.

This drill bit is intended for general-purpose jobber-length drilling where a letter N diameter hole is required. The straight-cylindrical shank seats in standard three-jaw chucks and collet-style tool holders without modification. The right-hand spiral flute geometry evacuates chips efficiently in through-hole and blind-hole applications. It is a high-performance grade C2 carbide bit, appropriate for production runs or precision one-off work where high-speed steel bits would wear prematurely or fail to hold size.

Key Features

• Solid carbide construction, grade C2, for extended tool life in hard or abrasive materials
• Letter N diameter: 0.3020 inches with a tight tolerance of -0.0005 to 0.0000 inches
• 118-degree standard point angle with web thinning to reduce entry thrust
• 2-flute regular spiral geometry promotes chip evacuation in a range of materials
• Bright (uncoated) finish maintains close dimensional tolerances
• Straight-cylindrical shank compatible with standard chucks and collet holders
• No coolant-through requirement; suitable for dry or externally cooled drilling setups

Compatibility

Designed as an OEM-style jobber-length drill bit for use in standard drill presses, CNC machining centers, and hand-held power tools accepting a 0.3020-inch straight-cylindrical shank.

Installation Notes

Solid carbide bits are brittle compared to high-speed steel; avoid side-loading or using in hand-held applications where lateral deflection is likely. Secure the shank fully in the chuck or collet and verify runout before drilling. Always wear appropriate eye protection and follow applicable shop safety standards when operating drilling equipment. Inspect the cutting edges before each use and replace the bit at the first sign of chipping or point deformation to maintain hole quality.