Hertel 66692765 Jobber Drill Bit Letter P Tialn Hss

Product Description

The HERTEL 66692765 is a jobber-length drill bit sized to Letter P (0.3230 inches decimal) and designed for heavy-duty holemaking in metal and similar materials. The bit is manufactured from high speed steel with a TiAlN coating that extends tool life by reducing heat buildup and wear at the cutting edge. The 135-degree split point starts on contact without a center punch and reduces walking on flat surfaces. A tapered web-thinned configuration lowers thrust requirements and improves chip evacuation during drilling. This bit is a standard choice for machinists, maintenance technicians, and industrial tradespeople working in fabrication, mechanical, or field service environments.

The HERTEL 66692765 is suited for general holemaking applications where a Letter P diameter hole is required. The TiAlN coating makes it appropriate for use in harder ferrous materials, alloy steels, cast iron, and stainless where heat resistance is a factor. The regular spiral flute and straight-cylindrical shank seat securely in standard drill chucks and CNC toolholders with a matching 0.3230-inch bore. The jobber-length body keeps the bit rigid enough for accurate drilling in both hand-held and machine-mounted setups.

Key Features

• Letter P size, 0.3230 inches decimal equivalent
• 135-degree split point with web thinning for reduced thrust and self-starting entry
• TiAlN coating for extended tool life in high-heat cutting conditions
• High speed steel construction rated for heavy-duty service
• Straight-cylindrical shank, 0.3230 inches, fits standard drill chucks and CNC toolholders
• 2-flute regular spiral design promotes consistent chip removal

Compatibility

Designed as a standard jobber-length drill bit with a straight-cylindrical shank; fits any drill chuck or CNC spindle accepting a 0.3230-inch shank diameter.

Installation Notes

Installation is performed by machinists or qualified maintenance technicians using a standard keyed or keyless drill chuck or appropriate CNC toolholder. Secure the shank fully in the chuck before operation and verify runout is within acceptable limits for the application. Use appropriate cutting fluid or coolant where the machining setup permits to further extend tool life, noting this bit does not have coolant-through capability. Inspect the cutting edges for wear or chipping before each use and replace the bit if the TiAlN coating is fully worn through at the point.