Guhring 9005520050000 Stub Drill Bit 5mm Hss

Product Description

The GUHRING 9005520050000 is a stub-length (screw machine length) twist drill bit engineered for high-performance drilling in aluminum and similar non-ferrous materials. Built from high speed steel with a bright uncoated finish, this bit features a parabolic flute design and a 130-degree point angle that promote efficient chip evacuation and reduce heat buildup in short-hole applications. The web-thinned, parallel web configuration lowers entry force and improves centering. At 2.441 inches overall length with a 1.0236-inch flute length, it fits standard drill chucks and screw machine setups without an extension.

This drill bit is suited to production machining environments, toolroom work, and bench-drill applications where a short, rigid tool is preferred over jobber-length bits. The straight cylindrical shank accepts standard three-jaw chucks on drill presses, CNC machining centers, and hand-held power drills. Its stub geometry limits deflection, making it a practical choice when drilling shallow holes in thin-stock aluminum, soft alloys, and comparable workpiece materials. The 5.00 mm diameter also serves metric-dimensioned fabrication work where a precise metric hole is required.

Key Features

• 5.00 mm (0.1969 inches) diameter with a diameter tolerance of +0.000 to -0.018 mm for consistent hole sizing
• Parabolic flute geometry accelerates chip removal and reduces clogging in aluminum
• 130-degree split point angle with web thinning reduces thrust and improves self-centering
• Stub (screw machine) length minimizes overhang and deflection for improved hole accuracy
• Bright uncoated high speed steel finish — compatible with standard cutting fluids and regrinding
• Manufactured to DIN 1897 specification, Series 552

Compatibility

Designed as an OEM-style replacement or direct-use stub drill bit for production and toolroom drilling setups requiring a 5.00 mm straight-shank bit conforming to DIN 1897 standards. Primary workpiece material is aluminum; suitable for similar soft non-ferrous alloys.

Installation Notes

Installation and use should be performed by a qualified machinist or trades professional familiar with rotating cutting tools. Secure the straight cylindrical shank firmly in a properly sized collet or three-jaw chuck before operation, and verify runout before production drilling. Power down the machine completely before inserting or removing the bit. Do not exceed the recommended maximum drilling depth of 0.728 inches (18.50 mm) per the flute-to-diameter ratio specification.