Guhring 9024640062500 Carbide Jobber Drill Bit Letter D

Product Description

The GUHRING 9024640062500 is a solid carbide jobber-length drill bit in Letter D size (0.2460 inches), designed for precision drilling in aluminum and other non-ferrous materials. It features a FIREX coating for improved wear resistance and a faceted 118-degree drill point with web thinning for easier entry and reduced thrust. The straight-cylindrical shank measures 6.25 mm in diameter, and the overall length is 3.98 inches (101 mm). This bit belongs to GUHRING Series 2464 and is suited for machinists, tool-and-die shops, and maintenance technicians who need repeatable accuracy in production drilling operations.

This drill bit is built for use in CNC machining centers, drill presses, and hand-held drilling equipment where a straight-cylindrical shank is compatible. It is optimized for aluminum (Primary Workpiece Material Code: N) but performs well in general-purpose applications across light metals and plastics. The 5xD flute-to-diameter ratio and regular spiral flute geometry provide efficient chip evacuation during through-hole and blind-hole drilling. Maximum drilling depth is 2.11 inches (53.63 mm), with a flute length of 2.48 inches (63 mm).

Key Features

• Solid carbide construction, Material Grade K40, for rigidity and extended tool life
• FIREX coating reduces friction and improves wear resistance in non-ferrous materials
• 118-degree faceted point with web thinning for reduced entry force and self-centering accuracy
• Regular spiral flute with 5xD ratio promotes efficient chip removal
• Right-hand cut, straight-cylindrical shank for broad machine compatibility
• Manufactured to DIN specification for consistent dimensional tolerances

Compatibility

Designed as an OEM-style jobber drill bit for use in any machine spindle or chuck accepting a straight-cylindrical shank of 6.25 mm diameter; compatible with CNC machining centers and bench drill presses used in general-purpose metal fabrication.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine isolated from power. Secure the straight-cylindrical shank in a collet or drill chuck rated for the shank diameter before operation. Inspect the cutting edges and FIREX coating for chips or wear before each use, as carbide tooling is brittle and susceptible to breakage from side loading or interrupted cuts. Follow applicable shop safety standards and machine manufacturer guidelines for RPM and feed rate selection.