Guhring 9024630099200 Carbide Stub Drill Bit 25/64 in

Product Description

The GUHRING 9024630099200 is a solid carbide screw machine length drill bit designed for precision drilling in demanding shop environments. Built to DIN 6539 standards, this stub-length bit measures 25/64 inch (0.3906 inch) in diameter with a 118-degree faceted point angle and a web-thinned tip to reduce entry force and walking. At 3.504 inches overall length with a 1.693-inch flute length, the compact stub format offers rigidity and reduced deflection in short-hole applications. Installation and operation are handled by machinists and tool-room technicians working in CNC and manual drilling setups.

This drill bit is rated for general-purpose drilling with a primary workpiece material designation of aluminum, though its solid carbide construction and coated finish extend service life in a range of non-ferrous and engineered materials. The straight-cylindrical shank fits standard drill chucks without a reduction sleeve. The 2-flute spiral design evacuates chips efficiently in shallow-to-moderate depth holes, with a maximum drilling depth of 1.107 inches. The Series 2463 stub configuration is a common choice for high-speed applications where rigidity matters more than reach.

Key Features

• Solid carbide construction for extended tool life and dimensional stability
• 118-degree faceted point angle with web thinning for reduced thrust and improved centering
• Coated finish for improved lubricity and wear resistance
• Stub (screw machine) length body for maximum rigidity and minimal deflection
• Right-hand cut, 2-flute spiral configuration for efficient chip evacuation
• Manufactured to DIN 6539 specification with K40 carbide grade

Compatibility

Designed for use in standard drill chucks accepting a straight-cylindrical shank; fits applications within the 0.3500 to 0.4000 inch drill bit size range per DIN 6539 Series 2463 classification.

Installation Notes

Solid carbide drill bits should be installed in a clean, properly sized collet or drill chuck and secured firmly before operation. Power down or deenergize the machine spindle completely before changing tooling. Avoid side-loading or using carbide bits as a prying tool, as carbide is brittle and can fracture under lateral stress. Refer to machine manufacturer feed and speed recommendations for the specific workpiece material.