Guhring 9024640067500 Drill Bit Letter H Solid Carbide

Product Description

The GUHRING 9024640067500 is a jobber-length drill bit in Letter H size (0.2656 inches, 17/64 inch) manufactured from solid carbide with a FIREX coating. Part of the Guhring Series 2464, it features a 118-degree faceted point, right-hand spiral flute, and web-thinned tip geometry. The overall length is 4.29 inches (109 mm), with a flute length of 2.72 inches (69 mm) and a straight-cylindrical shank diameter of 6.75 mm. Material grade K40 solid carbide and the FIREX coating combine to deliver heat resistance and edge retention, making this bit suited for high-production drilling in aluminum and other non-ferrous materials. It is installed by machinists and tool-and-die professionals in CNC and manual drill press operations.

The 9024640067500 is rated for use in aluminum and similar non-ferrous workpiece materials (Primary Workpiece Material Code N). The 5xD flute-to-diameter ratio supports controlled chip evacuation in moderate-depth holes. Maximum drilling depth is 2.318 inches (58.88 mm). The regular spiral geometry and two-flute design make it a practical general-purpose option for production shops, maintenance facilities, and precision machining environments where carbide tooling is standard. No coolant-through capability; external coolant or cutting fluid application is the appropriate method for heat management.

Key Features

• Solid carbide construction, K40 material grade, for rigidity and wear resistance in non-ferrous applications
• FIREX coating provides thermal protection and extended tool life at elevated cutting speeds
• 118-degree faceted point with web thinning reduces thrust force and improves centering accuracy
• Right-hand, regular spiral, two-flute design for efficient chip evacuation
• Straight-cylindrical shank (6.75 mm) fits standard drill chucks and collet systems without adapters
• Conforms to DIN specification standards for dimensional consistency

Compatibility

Designed as a general-purpose jobber-length carbide drill bit for use in standard drill chucks and collet holders accepting a 6.75 mm straight-cylindrical shank. Primary workpiece material rating is aluminum and non-ferrous materials per the manufacturer specification.

Installation Notes

This bit is installed by machinists in CNC machining centers, drill presses, or manual spindles with compatible chuck or collet systems. Secure the shank fully in the chuck or collet before operation and verify runout before drilling. Solid carbide tooling is brittle — avoid lateral loading, interrupted cuts without proper setup, or dropping the bit on hard surfaces. Apply external cutting fluid when drilling at sustained depths to manage heat, as this bit does not have coolant-through capability.