Guhring 9006660017000 Extra Length Drill Bit Hss Tin

Product Description

The GUHRING 9006660017000 is an extra length high speed steel (HSS) drill bit designed for precision drilling in metalworking and machining applications. Built to DIN 339 standards, it features a TiN (titanium nitride) coating that extends tool life and reduces friction during cutting. The bit measures 0.067 inches (wire gauge size 51) in diameter with a 118-degree drill point angle and a web-thinned, tapered web configuration for improved chip evacuation and reduced entry force. With a flute-to-diameter ratio of 10xD, this bit delivers extended reach into workpieces up to 1.278 inches deep. It is suited for installation by machinists and tool-and-die professionals working with drilling jigs and bushings.

This drill bit is rated for use on aluminum and general-purpose workpiece materials including non-ferrous metals and some plastics, per its K, N, and P material codes. Its bushing tool application designation makes it a strong choice for close-tolerance bushing-guided drilling operations. The straight-cylindrical shank with an h8 diameter tolerance ensures consistent chuck fit and minimal runout in standard drill chucks and collet holders. The right-hand spiral flute geometry moves chips efficiently away from the cutting zone during standard CNC or manual drilling operations.

Key Features

• TiN coating reduces friction and extends tool life compared to uncoated HSS
• Web-thinned, tapered web design lowers thrust force and improves hole entry
• 10xD flute-to-diameter ratio provides extended reach for deep-hole applications
• 118-degree split point angle suits aluminum and general-purpose workpiece materials
• Straight-cylindrical shank with h8 tolerance for consistent chuck fit and minimal runout
• Conforms to DIN 339 standard for extra length drill bits

Compatibility

Designed as a Series 666 extra length drill bit for use in bushing-guided drilling fixtures and standard drill chucks or collet holders accepting a 1.70 mm straight-cylindrical shank. Compatible with workpiece materials designated under material codes K (non-ferrous metals such as aluminum), N (non-metallic materials), and P (steel and ferritic materials) per GUHRING application guidelines.

Installation Notes

Installation and use should be performed by qualified machinists or tooling professionals familiar with drill press, CNC, or manual milling equipment. Always secure the workpiece properly and confirm chuck or collet runout is within tolerance before drilling. Power down and lock out the spindle before changing or inspecting tooling. Do not exceed the maximum recommended drilling depth of 1.278 inches without retracting to clear chips.