Guhring 9055250045000 Extra Length Drill Bit Solid Carbide

Product Description

The GUHRING 9055250045000 is a solid carbide extra length drill bit engineered for high-performance drilling in demanding industrial and machining applications. Built to DIN 6537 standards, this bit features a 140-degree drill point angle, spiral flutes, and a web-thinned tapered web configuration that promotes self-centering and reduces thrust during entry. The FIREX coating provides heat and wear resistance, extending tool life in abrasive materials. At 4.50 mm (0.1772 inches) in diameter with a 102.00 mm overall length and a 12xD flute-to-diameter ratio, this bit is designed for deep-hole drilling with consistent accuracy. Right-hand cutting direction and a straight-cylindrical shank make it compatible with standard drill chucks and collet holders.

This bit is suited for machining cast iron and steel as primary workpiece materials, with secondary suitability for aluminum and titanium alloys. It is intended for use in CNC machining centers, drill presses, and manual machines where extended reach and tight tolerances are required. The coolant-through design supports internal coolant delivery, making it especially effective in production environments where chip evacuation and thermal management are critical. Machinists and tool-and-die professionals working in metal fabrication, mold making, and precision component manufacturing will find this bit suited to deep-feature drilling where standard-length tooling cannot reach.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance
• FIREX coating for elevated heat resistance and extended tool life
• 140-degree drill point angle with self-centering facet point geometry
• Coolant-through design supports internal coolant for chip evacuation and heat control
• Web-thinned tapered web reduces cutting forces and entry thrust
• DIN 6537 standard compliant with right-hand spiral fluting

Compatibility

Designed as an OEM-specification solid carbide drill bit in the GUHRING Series 5525 line, suitable for use with standard straight-cylindrical shank toolholders, collets, and drill chucks sized to accept a 0.2362-inch shank diameter. Primary workpiece material codes K and P (cast iron and steel); secondary material codes H, M, N, and S (aluminum and titanium alloys).

Installation Notes

Installation should be performed by a qualified machinist familiar with carbide tooling and machine setup. Secure the shank fully in the toolholder to the recommended grip depth before use, and verify runout before cutting. When using the internal coolant-through feature, confirm the machine spindle delivers coolant at a pressure compatible with this tool type. Carbide tooling is brittle — avoid impact or side-loading during setup and storage, and do not use this bit for interrupted cuts unless the machine setup is rigid and vibration-free.