Guhring 9065110111100 Extra Length Carbide Drill Bit

Product Description

The GUHRING 9065110111100 is a solid carbide extra length drill bit designed for deep hole drilling in demanding industrial and machining applications. Built to Series 6511 standards, it features a 7/16 inch (0.4375 inch) diameter, a 135-degree standard point, and a TiAlN coating for heat and wear resistance at elevated cutting speeds. The flute length measures 274 mm and the overall length is 323 mm, giving this bit the reach required for deep-cavity work. Web thinning reduces thrust force at entry, and the tapered web configuration improves chip evacuation. Machinists and tool-and-die professionals working with CNC machining centers are the primary installers of this bit.

This drill bit is suited for deep hole drilling in cast iron, stainless steel, and steel as primary workpiece materials, and is rated for secondary use in aluminum and titanium alloys. The 20xD flute-to-diameter ratio supports drilling depths up to approximately 311.89 mm. Coolant-through capability makes it well matched for high-feed operations where chip evacuation and thermal management are critical. It is a high-performance grade tool intended for production machining environments where extended tool life and tight dimensional tolerances are required.

Key Features

• Solid submicron carbide substrate for rigidity and wear resistance in hard materials
• TiAlN coating extends tool life at high cutting temperatures
• 135-degree standard point with web thinning reduces entry thrust and improves centering
• Coolant-through design supports high-feed deep hole operations
• 20xD flute-to-diameter ratio with maximum drilling depth of approximately 311.89 mm
• Right-hand spiral flute, regular spiral type, for consistent chip evacuation
• Diameter tolerance of +0.000 to -0.018 mm for close-tolerance bore requirements

Compatibility

Designed for use in CNC machining centers and drill presses capable of through-coolant delivery. Primary workpiece materials are cast iron, stainless steel, and steel (ISO material codes K, M, P). Secondary workpiece materials include aluminum and titanium alloys (ISO codes N and H). Straight-cylindrical shank with a 12 mm shank diameter fits standard collet chucks and toolholders accepting that shank size.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the machine powered down and locked out per facility LOTO procedures. Ensure the collet or toolholder is clean and properly torqued before operation; do not exceed the toolholder manufacturer's grip-length recommendations for the 40 mm shank length. Through-coolant pressure and flow rate should be set according to the machine tool and workpiece material requirements before initiating the cut. This product is subject to California Proposition 65 warnings.