Guhring 9005520076000 Stub Drill Bit 0.2992 in Hss

Product Description

The GUHRING 9005520076000 is a screw machine length (stub) drill bit designed for high-performance drilling in aluminum and other non-ferrous materials. Built from high speed steel with a bright, uncoated finish, this bit features a parabolic flute geometry and a web-thinned, parallel-web configuration that promotes efficient chip evacuation and reduced thrust force. The 130-degree point angle suits flat-entry cuts where a self-centering profile is needed. At 3.1102 inches overall length with a 1.4567-inch flute length, the stub format provides increased rigidity over jobber-length bits, making it a reliable choice for production drilling environments where precision and repeatability matter.

This drill bit suits short-hole and spot-drilling applications in machining, fabrication, and maintenance settings. The straight-cylindrical shank allows direct installation into standard drill chucks, collet holders, and CNC tool holders. Its 3xD flute-to-diameter ratio and maximum drilling depth of 1.008 inches make it well matched to screw machine operations, gang drilling fixtures, and light-duty CNC drilling cycles. The DIN 1897 specification confirms dimensional conformance to European industry standards, making it a dependable option for shops that source to recognized tolerances.

Key Features

• Parabolic flute geometry with web thinning for improved chip flow and reduced cutting resistance
• 130-degree point angle optimized for aluminum and non-ferrous workpiece materials
• Stub length format increases rigidity and minimizes deflection in short-hole applications
• Bright, uncoated finish suitable for use with cutting fluids on non-ferrous materials
• Straight-cylindrical shank compatible with standard chucks and collet systems
• Conforms to DIN 1897 specification for consistent dimensional tolerances

Compatibility

Designed as an OEM-specification stub drill bit conforming to DIN 1897, compatible with standard straight-shank drill chucks, ER collet holders, and screw machine spindles that accept a 0.2992-inch diameter shank.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with cutting tool handling. Secure the shank fully within the chuck or collet to the recommended grip depth before applying power. Inspect the cutting edges for chips or wear before each use, and ensure the workpiece is rigidly fixtured to prevent movement during drilling. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain dimensional accuracy.