Guhring 9055240023000 Cobalt Stub Drill Bit 2.30 Mm

Product Description

The GUHRING 9055240023000 is a cobalt stub-length (screw machine length) drill bit designed for high-performance drilling in demanding materials. Built to DIN 1897 standards from M35 cobalt steel, it delivers the heat and wear resistance required when working through steel, stainless steel, cast iron, and aluminum. The 2.30 mm diameter bit features a 118-degree, 4-facet point with web thinning for clean entry and reduced thrust. Overall length is 40.00 mm (1.5748 inches) with a 13.00 mm flute length and a maximum drilling depth of 9.55 mm (0.376 inches). Designed for right-hand cutting with a regular spiral flute geometry, this bit is sized and finished to tight tolerances for consistent, repeatable results in production or field environments.

This drill bit is suited for metal fabrication, machine shops, and maintenance applications where a compact stub-length profile is preferred for rigidity and reduced deflection. The straight cylindrical shank fits standard drill chucks. Primary workpiece materials include steel, stainless steel, cast iron, and aluminum and non-ferrous alloys. The 3xD flute-to-diameter ratio and tapered web configuration make it effective for short-depth holes in tight setups. Sold individually with a minimum order quantity of 10 units, this bit is a practical choice for shop restocking or production tooling kits.

Key Features

• M35 cobalt steel construction for heat resistance and extended tool life in ferrous and stainless materials
• 118-degree, 4-facet point with web thinning reduces entry force and improves centering
• DIN 1897 stub-length profile provides added rigidity and reduced deflection versus jobber-length bits
• Right-hand cutting, regular spiral flute for efficient chip evacuation
• Diameter tolerance of +0.000 to -0.014 mm ensures consistent fit in close-tolerance work
• Bright/uncoated finish; no coolant-through; straight cylindrical shank fits standard chucks

Compatibility

Designed as an OEM-style replacement or production tooling option for standard drill chucks accepting a 2.30 mm straight cylindrical shank, conforming to DIN 1897 stub-length specifications.

Installation Notes

This bit is installed and used by machinists, tool-and-die professionals, and maintenance technicians using drill presses, CNC machining centers, or handheld power drills with compatible chucks. Ensure the chuck is fully tightened and the workpiece is properly secured before operation. Do not exceed the recommended maximum drilling depth of 9.55 mm without retracting to clear chips. Use appropriate cutting fluid when drilling stainless steel or cast iron to prolong tool life.