Guhring 9055110112000 Carbide Drill Bit 0.4409 in 140 Deg

Product Description

The GUHRING 9055110112000 is a solid carbide jobber-length drill bit designed for precision drilling in demanding industrial and trade applications. Built to DIN 6537L specification, this bit features a 140-degree split point (SU type) with web thinning for reduced entry force and improved centering without a pilot hole. The FIREX coating provides enhanced surface hardness and heat resistance, extending tool life in abrasive or hard materials. At 4.6457 inches overall length with a 2.7953-inch spiral flute, this is a purpose-built tool for machinists, tool-and-die technicians, and production drilling operations requiring tight tolerances.

This drill bit is suited for use in CNC machining centers, drill presses, and manual milling setups where coolant-through capability is required. The 5xD flute-to-diameter ratio supports chip evacuation in deeper hole applications. The straight-cylindrical shank at 0.4724 inches diameter is compatible with standard collet chucks and drill chucks in that bore range. Typical applications include structural metalwork, precision component manufacturing, and production runs in ferrous and non-ferrous materials where consistent hole quality and diameter tolerance are critical.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance in hard materials
• FIREX coating for elevated heat resistance and extended tool life
• 140-degree SU point with web thinning for self-centering entry and reduced thrust force
• Coolant-through design supports chip flushing in deep-hole drilling
• Regular spiral flute with 5xD ratio for efficient chip evacuation
• DIN 6537L specification ensures dimensional consistency and interchangeability

Compatibility

Designed as a DIN 6537L-compliant jobber-length carbide drill bit with a straight-cylindrical shank; fits standard collet chucks and drill chucks sized for a 0.4724-inch shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with carbide tooling requirements. Ensure the spindle and chuck are fully powered down and secured before changing tooling. Carbide tooling is brittle and should not be subjected to lateral shock or used in hand-held drill applications. Confirm coolant-through passages are clear and coolant pressure is appropriate before beginning a drilling cycle.