Guhring 9055110075000 Carbide Jobber Drill Bit 0.2953in

Product Description

The GUHRING 9055110075000 is a solid carbide jobber-length drill bit designed for precision hole-making in demanding production environments. Built to DIN 6537L standards, it features a 140-degree split point (SU type) with web thinning for self-centering entry without a center punch. The FIREX coating provides thermal and wear resistance, extending tool life in high-cycle applications. At 0.2953 inches in diameter with a 3.5827-inch overall length, this bit suits CNC drilling operations where consistent diameter tolerance and tool life matter. It is installed and operated by machinists and tool-and-die professionals working on production runs or precision fabrication.

This drill bit is engineered for cutting cast iron and steel, covering primary workpiece material codes K and P. The spiral flute geometry with a regular spiral type and 5xD flute-to-diameter ratio handles chip evacuation in both through-hole and blind-hole configurations. Coolant-through capability makes it compatible with internal coolant delivery on CNC machining centers, reducing heat buildup during deep drilling passes. The straight-cylindrical shank seats securely in standard drill chucks and collet holders. Typical applications include automotive, die-making, and general metalworking where tight hole tolerances and repeatable performance are required.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance in ferrous materials
• FIREX coating for extended tool life under thermal load
• 140-degree SU point with web thinning enables self-centering entry
• Coolant-through design compatible with internal coolant delivery systems
• Right-hand cut, 2-flute spiral geometry optimizes chip evacuation
• Meets DIN 6535 and DIN 6537L standards for dimensional consistency

Compatibility

Designed for use in CNC machining centers and drill presses equipped with straight-cylindrical shank toolholders. Primary workpiece materials are cast iron and steel. Fits standard chucks and collet holders accepting a 0.3150-inch shank diameter.

Installation Notes

Installation and operation should be performed by qualified machinists following standard machine tool safety procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the toolholder. Verify coolant-through lines are clear and delivering adequate flow before beginning deep drilling passes. Do not exceed the maximum drilling depth of 1.6440 inches per pass without retracting to clear chips.