Guhring 9065090051000 Extra Length Drill Bit 5.1mm Carbide

Product Description

The GUHRING 9065090051000 is a solid carbide extra length drill bit engineered for deep hole drilling applications where standard-length tooling falls short. Built to Series 6509 specifications, it features a TiAlN coating that improves heat resistance and extends tool life when cutting abrasive and high-strength materials. The 135-degree split point with RT100 T geometry and web-thinned tip reduces entry thrust and promotes accurate hole initiation without a center punch. At 150 mm overall length with a 110 mm flute length, this bit handles depths up to approximately 102 mm, making it a practical choice for production and maintenance machining environments.

This drill bit is rated for primary use in cast iron, stainless steel, and steel, with secondary capability in aluminum and titanium alloys. The straight-cylindrical shank at 6 mm diameter seats securely in standard drill chucks and collet holders. Coolant-through capability supports internal flushing to clear chips and manage heat in deep-hole operations. It is suited for CNC machining centers, drill presses, and multi-spindle setups where consistent hole quality at extended reach is required.

Key Features

• Solid carbide construction with TiAlN coating for extended tool life in ferrous and high-strength materials
• 135-degree RT100 T point with web thinning for reduced entry thrust and accurate hole start
• Coolant-through design supports chip evacuation and thermal management in deep-hole applications
• 15xD flute-to-diameter ratio enables drilling depths up to 102.35 mm
• Right-hand spiral flute with h7 diameter tolerance for consistent bore quality
• Straight-cylindrical 6 mm shank compatible with standard collet and drill chuck systems

Compatibility

Designed as an OEM-specification replacement and production tooling option within the GUHRING Series 6509 extra length drill program. Compatible with any holder accepting a straight-cylindrical 6 mm shank.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling handling procedures. Ensure the machine spindle and coolant system are fully powered down before loading or removing the bit from its holder. Carbide tooling is brittle and susceptible to chipping from improper clamping torque or side loading — verify runout before initiating a cut. Follow applicable shop safety standards and machine manufacturer guidelines when setting feeds, speeds, and coolant pressure.