Guhring 9006580079400 Cobalt Jobber Drill Bit 5/16 in

Product Description

The GUHRING 9006580079400 is a cobalt jobber-length drill bit with a titanium nitride (TiN) coating, designed for high-performance drilling in ferrous metals. The bit measures 5/16 inches in diameter with an overall length of 4-19/32 inches and a flute length of 2-15/16 inches. Built to DIN 338 standards, it features a 130-degree split point, a parabolic flute profile, and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. Right-hand cut with a straight-cylindrical shank, it fits standard drill chucks without adapters. This bit belongs to Guhring Series 658 and is rated for production and maintenance drilling applications.

This bit is suited for drilling cast iron and steel in residential, commercial, and industrial settings. The 5xD flute-to-diameter ratio and parabolic flute geometry make it well-matched for deeper holes where chip clearing is a concern. The TiN coating extends tool life when running at elevated feeds and speeds typical of production drilling. Machinists, maintenance technicians, and metalworking trades will find this bit appropriate for repetitive drilling cycles in P- and K-class workpiece materials as classified under ISO material groupings.

Key Features

• Cobalt steel construction with TiN coating for extended wear resistance in ferrous metals
• 130-degree drill point angle with web thinning for reduced entry thrust
• Parabolic flute geometry with 5xD ratio promotes efficient chip evacuation
• Straight-cylindrical shank fits standard keyless and keyed drill chucks
• Built to DIN 338 specification for consistent dimensional tolerances
• Right-hand cut, two-flute design suitable for cast iron and steel

Compatibility

Designed as an OEM-specification jobber-length drill bit for use in standard drill chucks accepting a 5/16-inch straight-cylindrical shank. Primary workpiece materials are cast iron and steel per DIN 338 Series 658 application guidelines.

Installation Notes

Installation is performed by machinists or maintenance technicians using a drill press, CNC machining center, or hand-held drill with an appropriate chuck. Secure the shank fully in the chuck before operation and verify chuck runout is within acceptable limits to avoid premature bit wear. Power down and de-energize the machine before changing bits. Do not use this bit on materials outside its rated workpiece classification without verifying compatibility with the manufacturer.