Guhring 9006220025000 Cobalt Jobber Drill Bit 2.5 Mm

Product Description

The GUHRING 9006220025000 is a cobalt jobber length drill bit designed for high-performance drilling in demanding applications. Measuring 2.5 mm (0.0984 inches) in diameter with a 2.25-inch overall length, this bit features a 130-degree split point and a parabolic flute geometry that promotes efficient chip evacuation and reduced cutting resistance. The bright, uncoated finish is standard for cobalt-grade tooling where heat resistance and edge retention are priorities. It is suitable for use in machine shop environments, maintenance operations, and precision fabrication work performed by machinists and tool and die professionals.

This drill bit is rated for primary use in aluminum and similar non-ferrous and low-alloy workpiece materials, consistent with DIN 338 Series 622 specifications. The parabolic flute design with a 5xD flute-to-diameter ratio supports deeper chip clearing passes. A maximum drilling depth of 1.033 inches (26.25 mm) makes it appropriate for through-hole and moderate blind-hole work in light-to-medium stock. Right-hand cut orientation is standard for conventional drill press, CNC, and handheld power tool setups.

Key Features

• Cobalt construction provides elevated heat and wear resistance compared to standard HSS bits
• 130-degree split point reduces walking and improves initial penetration without a center punch
• Parabolic flute geometry promotes aggressive chip evacuation in aluminum and soft alloys
• Web-thinned, tapered web configuration reduces thrust load during drilling
• Straight-cylindrical shank (0.0984 inches) fits standard drill chucks without adapters
• Conforms to DIN 338 standard for jobber length geometry and tolerances

Compatibility

Designed as a DIN 338 Series 622 jobber length drill bit suitable for use with standard drill presses, CNC machining centers, and handheld power tools accepting straight-cylindrical shanks in the 0.0984-inch diameter range. Primary workpiece material codes K, N, and P indicate suitability for aluminum, non-ferrous metals, and low-alloy steels.

Installation Notes

This bit is installed and operated by machinists or maintenance technicians using a standard keyed or keyless drill chuck. Ensure the machine spindle is fully stopped and the chuck is secure before seating or removing the bit. Confirm appropriate spindle speed and feed rate for the workpiece material before drilling. Coolant-through is not supported on this bit, so external cooling or cutting fluid application is recommended for extended runs in harder materials.