Guhring 9005520025300 Stub Drill Bit 0.0995 in Hss

Product Description

The GUHRING 9005520025300 is a screw machine length (stub) drill bit designed for high-performance drilling in tight setups and short-stroke machines. It measures 0.0995 inches in diameter, conforms to DIN 1897, and is manufactured from high speed steel with a bright uncoated finish. The parabolic flute geometry promotes efficient chip evacuation and reduced heat buildup during drilling operations. With a 130-degree point angle and web-thinned tip, this bit requires less thrust force at entry, improving accuracy in production drilling environments. It is suited for machinists, tool-and-die technicians, and precision fabricators working on close-tolerance applications.

This drill bit is intended for use in screw machine operations, CNC drilling setups, drill presses, and hand-held power tools where a short overall length provides increased rigidity and reduced deflection. Primary workpiece material is aluminum, though the HSS construction also handles a range of non-ferrous and softer ferrous materials. The straight-cylindrical shank seats directly into standard chucks without adapters. With a flute-by-diameter ratio of 3xD and a maximum drilling depth of 0.402 inches, this bit is well suited for shallow, high-repeatability holes in production and job-shop environments.

Key Features

• DIN 1897 stub length for increased rigidity and reduced deflection in short-stroke applications
• Parabolic flute profile with web-thinning for efficient chip evacuation and lower entry thrust
• 130-degree point angle optimized for aluminum and similar materials
• Bright uncoated HSS construction suitable for a wide range of non-ferrous workpieces
• Straight-cylindrical shank fits standard drill chucks without adapters
• Diameter tolerance held to +0.000 to -0.014 mm for consistent hole quality

Compatibility

Designed as a DIN 1897 stub-length drill bit with a straight-cylindrical shank, this bit is compatible with standard drill chucks used in screw machines, CNC machining centers, drill presses, and hand-held power drills. Primary workpiece material compatibility is aluminum per manufacturer specification.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with drill press and CNC spindle operations. Secure the shank fully in a properly sized chuck before use and verify concentricity to minimize runout. Power down and lock out the machine before changing or inspecting tooling. Do not exceed the recommended maximum drilling depth of 0.402 inches for this stub-length geometry.