Guhring 9005520038000 Stub Drill Bit Size 25 Hss

Product Description

The GUHRING 9005520038000 is a screw machine length (stub) drill bit designed for high-throughput drilling in production and repair environments. Built to DIN 1897 standards from high-speed steel (HSS) with a bright, uncoated finish, this bit carries a 130-degree cone relief point and a parabolic flute geometry that promotes fast chip evacuation and reduced cutting force. The 0.1495-inch (wire size 25) cutting diameter and compact 2-11/64-inch overall length make it well suited to drill press, CNC, and screw machine setups where rigidity and hole accuracy are priorities. Machinists, toolroom technicians, and maintenance mechanics are the typical end users.

This bit is rated for drilling steel, aluminum, and non-ferrous metals in both production shop and field maintenance applications. The stub length body minimizes deflection in short-reach drilling operations, making it a reliable choice for tight tolerances on small-diameter holes. Web-thinned geometry at the tip reduces thrust load when starting the hole, which is especially useful on harder steel stock. The straight cylindrical shank seats directly in standard drill chucks and collets without adapters.

Key Features

• DIN 1897 stub length format for maximum rigidity and reduced runout
• 130-degree cone relief point with web thinning for lower thrust and cleaner entry
• Parabolic flute profile (fast spiral) accelerates chip removal in deep-for-diameter cuts
• Bright/uncoated HSS construction compatible with standard cutting fluids and coolants
• Parallel web configuration maintains consistent core strength along flute length
• Diameter tolerance of +0.000 to -0.018 mm supports close-tolerance hole requirements

Compatibility

Designed as a direct-fit replacement or production tooling choice for any drill press, CNC machining center, or screw machine spindle accepting a straight cylindrical shank of 0.1496 inches (3.80 mm). Primary workpiece materials per manufacturer specification are steel, aluminum, and non-ferrous alloys.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Ensure the spindle and workpiece are fully secured before operation and verify chuck or collet runout before beginning a production run. Apply appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain hole quality. Inspect the cutting edge and web for wear or chipping before each use; do not operate a damaged bit.