Guhring 9055110031000 Carbide Drill Bit 3.1 Mm Firex

Product Description

The GUHRING 9055110031000 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding industrial applications. Built to DIN 6537L standards, it features a 3.1 mm diameter, a 140-degree split-point (SU) tip, and a FIREX coating for extended tool life and heat resistance. The two-flute spiral design with web-thinned, tapered web geometry promotes efficient chip evacuation and reduces entry thrust. A straight-cylindrical shank with a 6.0 mm shank diameter ensures secure chuck engagement. This bit is installed and used by machinists, tool-and-die technicians, and CNC operators working with cast iron and steel workpieces.

The 9055110031000 is suited for precision drilling in cast iron and steel at a 5xD flute-to-diameter ratio, with a maximum drilling depth of 25.0 mm. The self-centering point geometry reduces the need for a center punch on flat surfaces. Coolant-through capability supports high-speed, deep-hole operations where chip clearance and heat management are critical. This bit fits production environments, job shops, and maintenance machining operations where consistent hole quality in ferrous materials is required.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance in ferrous materials
• FIREX coating provides thermal protection and reduces built-up edge during high-speed drilling
• 140-degree SU split-point tip enables self-centering entry without pilot drilling
• Coolant-through design supports internal coolant delivery for deep-hole and high-feed operations
• Web-thinned tapered web lowers axial thrust and improves chip flow
• Meets DIN 6535 and DIN 6537 L standards for dimensional consistency and interchangeability

Compatibility

Designed as an OEM-specification replacement or direct-use drill bit compatible with standard straight-cylindrical chuck systems accepting a 6.0 mm shank diameter; intended for use on cast iron and steel workpieces per Primary Workpiece Material Codes K and P.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the drill chuck or collet is clean and properly torqued before seating the straight-cylindrical shank. Confirm coolant-through lines are purged and flowing before beginning deep-hole operations. Do not exceed the rated maximum drilling depth of 25.0 mm without re-evaluating chip evacuation and tool deflection.