Guhring 9055190031000 Cobalt Jobber Drill Bit 3.1mm

Product Description

The GUHRING 9055190031000 is a cobalt jobber-length drill bit with a titanium nitride (TiN) coating, designed for precision drilling in metalworking and industrial applications. Built to DIN 338 standards and classified as Material Grade M35, this bit features a 118-degree four-facet split point for accurate self-centering entry and reduced walking on hard surfaces. The 3.10 mm diameter straight-cylindrical shank pairs with a 2-flute regular spiral design to deliver consistent chip evacuation and clean hole geometry. Machinists, tool-and-die workers, and maintenance professionals rely on this series for repeatable performance in production and repair environments.

This drill bit is suited for drilling aluminum and a range of ferrous and non-ferrous workpiece materials, consistent with material codes K, M, N, and P. Its 65 mm overall length and 36 mm flute length make it appropriate for standard-depth through-holes and blind holes in light fixtures, structural components, sheet metal, and general fabrication work. The web-thinned, tapered web configuration reduces thrust load and improves cutting efficiency at the tip.

Key Features

• M35 cobalt construction with TiN coating for extended tool life in abrasive and hard materials
• 118-degree four-facet split point for self-centering entry and reduced drill walk
• Web-thinned tapered web lowers thrust requirements and improves chip flow
• Right-hand cut, 2-flute regular spiral for consistent chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters
• Manufactured to DIN 338 specification for dimensional consistency

Compatibility

Designed as an OEM-style replacement and production drill bit for standard 3.10 mm straight-shank drill chuck applications conforming to DIN 338 jobber-length specifications.

Installation Notes

Installation and use of this drill bit is performed by machinists, maintenance technicians, and fabricators using standard drill presses, CNC machining centers, or hand-held power drills with compatible chuck sizes. Ensure the machine is fully powered down and the chuck is secured before bit changes. Use appropriate cutting fluid or lubricant for the workpiece material to maximize coating life and hole quality. Do not exceed the recommended maximum drilling depth of 31.35 mm for this bit size.