Hertel 84578673 Jobber Drill Bit Letter P Hss Tin

Product Description

The HERTEL 84578673 is a jobber-length twist drill bit sized to Letter P (0.3230 inches) and designed for general-purpose hole-making in metal, wood, and plastic. The bit is manufactured from high speed steel (HSS) with a titanium nitride (TiN) coating that extends tool life by reducing friction and heat buildup at the cutting edge. It features a standard 118-degree split point with web thinning for easier penetration and reduced walking on entry. The straight-cylindrical shank seats directly in standard drill chucks without adapters. At 4.625 inches overall length with a 3.3125-inch flute, it is a practical choice for machinists, maintenance techs, and fabricators working with conventional drill presses or hand-held power drills.

This bit is suited for light-to-medium duty drilling in ferrous and non-ferrous metals, thermoplastics, and composite materials. The TiN coating makes it particularly effective on mild steel, aluminum, and similar workpiece materials where extended run cycles would otherwise accelerate wear on uncoated HSS tooling. It ships as a single unit, making it a direct replacement or spot-order item for toolroom and field inventory alike.

Key Features

• Letter P size — 0.3230 inches decimal equivalent
• 118-degree standard point angle with web-thinned tip for reduced thrust and cleaner entry
• TiN coating for extended edge life and reduced heat buildup
• Regular spiral, 2-flute design for efficient chip evacuation
• Straight-cylindrical shank fits standard 3-jaw and keyless drill chucks
• Right-hand cut for use with conventional clockwise-rotating drills and drill presses

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any drill press, CNC drill unit, or hand-held power drill equipped with a chuck sized to accept a 0.3230-inch straight-cylindrical shank.

Installation Notes

Secure the shank fully in the chuck and verify the bit runs true before engaging the workpiece. Power down and de-energize the drill or machine before changing bits. Use appropriate cutting fluid or coolant on ferrous materials to prolong edge life, as this bit does not support through-coolant. Follow shop safety standards and applicable OSHA machine guarding requirements when operating drill presses or power hand tools.