Guhring 9024630021800 Stub Drill Bit 0.086 in Carbide

Product Description

The GUHRING 9024630021800 is a stub-length (screw machine length) solid carbide drill bit designed for precision hole-making in demanding shop and production environments. It carries a wire gauge size of #44 and a decimal diameter of 0.086 inches. The bit features a 118-degree faceted point angle, a web-thinned tip for reduced thrust and improved centering, and a 2-flute regular spiral configuration that clears chips efficiently. At 1.575 inches overall length with a 0.512-inch flute length, it fits standard screw machine and CNC drill cycles. Licensed machinists and tool-room technicians are the primary installers of this bit.

This drill bit is rated for general-purpose drilling with aluminum listed as the primary workpiece material, making it a strong choice for aerospace, automotive, and precision machining shops running aluminum components. The straight-cylindrical shank measures 2.18 mm in diameter and seats directly into standard collets, drill chucks, and quick-change tooling systems. With a maximum drilling depth of 0.383 inches (9.73 mm) and a flute-to-diameter ratio of 3xD, it is suited for shallow-to-moderate depth holes in production runs where consistency and dimensional accuracy are critical.

Key Features

• Solid carbide construction (Material Grade K40) for wear resistance and dimensional stability
• 118-degree faceted drill point with web thinning for lower entry thrust and accurate self-starting
• 2-flute regular spiral design promotes efficient chip evacuation in aluminum and similar materials
• Stub (screw machine) length at 1.575 inches overall for improved rigidity in short-reach applications
• Straight-cylindrical shank compatible with standard collets and drill chucks
• Manufactured to DIN 6539 standard for consistent dimensional tolerances (+0.000 to -0.010 mm diameter tolerance)

Compatibility

Designed as an OEM-style replacement or direct substitute for stub-length carbide drill bits conforming to DIN 6539 specifications in the 0.0000 to 0.1000 inch diameter range, Series 2463.

Installation Notes

Installation of carbide drill bits should be performed by qualified machinists or tool-room technicians familiar with CNC or manual drilling equipment. Ensure the spindle is fully de-energized and at rest before changing tooling. Carbide is brittle — avoid impact loading, side forces, or over-extension beyond the recommended drilling depth. Always verify shank seating and runout before beginning a production cycle.