Guhring 9055110074000 Carbide Jobber Drill Bit 0.2913in

Product Description

The GUHRING 9055110074000 is a solid carbide jobber-length drill bit designed for high-performance hole-making in demanding production environments. Built to DIN 6537L standards, it carries a 140-degree split point (SU type) with web thinning for self-centering entry and reduced thrust. The FIREX coating provides heat and wear resistance for extended tool life in ferrous materials. At 3.5827 inches overall length with a 2.0866-inch flute length, it fits standard toolholders and machining centers used by machinists and tool-and-die professionals working in close-tolerance applications.

This drill is intended for cutting cast iron and steel workpieces, covering primary material codes K and P. The 5xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes up to 1.65 inches. A straight-cylindrical shank measuring 0.3150 inches in diameter seats reliably in standard drill chucks and collet-style toolholding systems. The Series 5511 designation places this bit within a submicron carbide grade family engineered for consistent performance on CNC machining centers and manual knee mills in industrial and job-shop settings.

Key Features

• Solid submicron carbide construction for rigidity and wear resistance in ferrous materials
• FIREX coating reduces friction and extends tool life in cast iron and steel cutting
• 140-degree SU point with web thinning enables self-centering entry without a pilot hole
• Coolant-through design delivers cutting fluid directly to the cutting edge for deep-hole applications
• Conforms to DIN 6535 and DIN 6537L dimensional standards for interchangeable fitment
• Regular spiral flute geometry with tapered web supports reliable chip evacuation

Compatibility

Designed as a DIN 6537L-compliant jobber-length drill bit for use in standard drill chucks and collet toolholding systems that accept a 0.3150-inch straight-cylindrical shank; suitable for CNC and manual machining setups targeting cast iron and steel workpiece materials.

Installation Notes

Installation and operation should be performed by a qualified machinist familiar with carbide tooling. Secure the straight-cylindrical shank fully within the collet or chuck to the recommended grip depth before running the spindle. Carbide is brittle — avoid impact loading, interrupted cuts without proper feed rate adjustment, and side-loading that can cause edge chipping or tool fracture. Verify coolant-through supply pressure and flow are confirmed before engaging the cut when using the internal coolant feature.