Guhring 9006580079000 Cobalt Drill Bit 7.9mm Tin

Product Description

The GUHRING 9006580079000 is a cobalt jobber length drill bit designed for demanding metal drilling applications. It measures 7.9 mm (0.3110 inches) in diameter with an overall length of 4-19/32 inches and a flute length of 2-15/16 inches. The bit is finished with a Titanium Nitride (TiN) coating, which reduces friction and extends cutting life in production environments. A parabolic flute geometry promotes efficient chip evacuation, and the web-thinned, tapered web design reduces thrust during entry. This bit is manufactured to DIN 338 specification and is rated as a high-performance grade tool, making it appropriate for use by machinists, maintenance technicians, and metalworking professionals.

This drill bit is suited for right-hand cutting in ferrous and non-ferrous metals, including hardened steels, stainless alloys, and cast iron where cobalt tooling is preferred over standard high-speed steel. The straight-cylindrical shank fits standard drill chucks without modification. Its jobber length profile makes it a general-purpose choice for bench drilling, CNC drilling, and hand-held drill motor applications across manufacturing, industrial maintenance, and fabrication settings. It is sold individually but must be ordered in multiples of five per the manufacturer minimum order requirement.

Key Features

• Cobalt construction with TiN coating for extended tool life in hard materials
• Parabolic flute design promotes fast, clean chip evacuation
• Web-thinned tapered web reduces entry thrust and improves centering
• 130-degree drill point angle suits a wide range of metal drilling applications
• DIN 338 specification ensures consistent dimensional standards
• Straight-cylindrical shank fits standard 3-jaw and collet-style chucks

Compatibility

Designed as a DIN 338-compliant jobber length drill bit for use in standard drill chucks accepting a 0.3110-inch straight-cylindrical shank across bench, floor, and CNC drilling equipment.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with proper drill press or CNC setup procedures. Secure the shank fully in the chuck and verify runout before cutting. Always wear appropriate eye protection and secure the workpiece before drilling. Inspect the cutting edges for wear before each use, as a dull cobalt bit run under improper feed or speed can cause premature coating failure or breakage.