Guhring 9055150030000 Carbide Jobber Drill Bit 3mm

Product Description

The GUHRING 9055150030000 is a solid carbide jobber-length drill bit designed for high-performance drilling in ferrous materials. Built to DIN 6537L standards, it features a 140-degree split-point (SU) geometry that enables self-centering entry without a center punch, reducing setup time and improving positional accuracy. The FIREX coating provides thermal resistance and extended tool life when cutting cast iron and steel. With a submicron carbide grade and web-thinned, tapered web construction, this bit handles demanding production and job-shop applications where standard HSS tooling falls short. Licensed machinists, tool-and-die shops, and metalworking professionals will recognize the Series 5515 as a production-grade choice.

This drill bit is suited for drilling cast iron and steel workpieces in both manual and CNC machining environments. The straight-cylindrical shank seats securely in standard drill chucks and collet holders. A 5xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes. Typical applications include component drilling on lathes, mills, and dedicated drill presses in industrial and maintenance-repair-operations (MRO) settings.

Key Features

• Solid submicron carbide construction for rigidity and wear resistance in ferrous materials
• FIREX coating improves thermal performance and extends cutting life
• 140-degree SU split-point geometry enables self-centering without a pilot hole
• Web-thinned tapered web reduces thrust force and entry resistance
• Right-hand spiral flute promotes efficient chip evacuation
• Meets DIN 6535 and DIN 6537 L standards for consistent dimensional tolerances

Compatibility

Primary workpiece materials are cast iron (material code K) and steel (material code P). Fits any standard drill chuck or collet holder accepting a 6 mm straight-cylindrical shank. Compatible with manual drill presses and CNC machining centers.

Installation Notes

Solid carbide tooling requires rigid machine setups with minimal runout; use in machines with low spindle runout to avoid chipping the cutting edge. Ensure the shank is fully seated and the chuck or collet is properly tightened before operation. Carbide bits are brittle compared to HSS equivalents and should not be used in handheld drills or flexible-shaft tools. Observe all applicable machine guarding and personal protective equipment requirements per facility safety standards.