Guhring 9024630033000 Carbide Stub Drill Bit 0.1299in

Product Description

The GUHRING 9024630033000 is a solid carbide screw machine length (stub) drill bit designed for precision hole-making in aluminum and other non-ferrous materials. It carries a 3.30 mm (0.1299 inch) diameter, an 118-degree faceted point, and a web-thinned geometry that reduces thrust and improves chip evacuation at entry. The straight-cylindrical shank seats securely in standard drill chucks and collet holders. With an overall length of 1.929 inches and a flute length of 0.709 inches, this stub-length format provides added rigidity over jobber-length bits, making it well-suited to CNC machining centers, drill presses, and screw machine operations where runout control and hole accuracy are critical.

This bit is built for general-purpose production drilling in aluminum as its primary workpiece material, though the solid carbide construction and coated finish also support use in other non-ferrous and composite materials. The stub flute length and 3xD flute-to-diameter ratio make it appropriate for shallow to moderate-depth holes, with a maximum drilling depth of 0.514 inches. It is commonly used in precision machining shops, CNC job shops, and production environments where tight tolerances and consistent hole geometry are required. The right-hand spiral flute design clears chips efficiently during through and blind-hole drilling.

Key Features

• Solid carbide construction (Material Grade K40) delivers hardness and wear resistance for consistent performance in aluminum
• Web-thinned point geometry reduces entry thrust and improves centering accuracy
• 118-degree faceted drill point suits general-purpose drilling in non-ferrous materials
• Stub (screw machine) length provides increased rigidity over standard jobber-length bits
• Coated finish extends tool life and reduces built-up edge in aluminum
• Meets DIN 6539 standard, Series 2463

Compatibility

Designed as an OEM-style replacement or direct substitute for 3.30 mm straight-shank stub drill bits conforming to DIN 6539 specifications. Fits standard drill chucks and collet systems accepting a 3.30 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with carbide tooling. Secure the shank fully in a collet or drill chuck rated for the intended spindle speed before operation. Carbide tooling is brittle — avoid side-loading, interrupted cuts without proper setup, or dropping the bit on hard surfaces. Follow the machine tool manufacturer and OSHA guidelines for speeds, feeds, and coolant application appropriate to the workpiece material.