Guhring 9005490087000 Jobber Drill Bit 8.7mm Hss

Product Description

The GUHRING 9005490087000 is a jobber-length twist drill bit manufactured from high-speed steel with a bright, uncoated finish. It cuts at 8.7 mm (0.3425 inches) diameter with a 130-degree point angle designed for efficient chip evacuation and reduced thrust. The parabolic flute geometry promotes faster chip removal compared to standard flute profiles, making this bit well-suited for production drilling applications. A web-thinned, tapered web at the tip lowers entry force and improves centering. The straight-cylindrical shank is compatible with standard three-jaw drill chucks and collet holders. This is a right-hand cut bit conforming to DIN 338, the widely recognized standard for jobber-length drills.

This bit is rated for drilling aluminum and non-ferrous materials as its primary application, matching workpiece material codes K, N, and P per the manufacturer specification. Its parabolic flute design and high-performance grade make it a practical choice for CNC machining centers, drill presses, and hand-held power tools in metal fabrication, maintenance, and general manufacturing environments. The 5xD flute-to-diameter ratio supports drilling depths up to approximately 2.675 inches (67.95 mm) in a single pass without peck cycling in favorable conditions.

Key Features

• 8.7 mm (0.3425 inch) diameter, DIN 338 jobber length standard
• Parabolic flute geometry for fast chip evacuation in aluminum and non-ferrous metals
• 130-degree point angle reduces thrust and improves self-centering
• Web-thinned tapered web lowers entry force and extends tip life
• Bright uncoated HSS construction — suitable for regrinding and resharpening
• Right-hand cut with straight-cylindrical shank for universal chuck compatibility

Compatibility

Designed as a DIN 338-compliant jobber-length drill bit for use in standard drill chucks and collet systems accepting a 0.3425-inch straight-cylindrical shank. Primary workpiece materials are aluminum and non-ferrous metals per manufacturer specification.

Installation Notes

Installation and use should be performed by qualified machinists or tool and die technicians familiar with rotating cutting tools. Secure the shank fully in the chuck or collet holder before operation and verify runout is within acceptable tolerance for the application. Always wear appropriate eye protection and ensure the workpiece is clamped securely. Do not exceed the recommended drilling depth of 2.675 inches without retracting to clear chips.