Guhring 9010180015900 Cobalt Drill Bit 1/16 Inch

Product Description

The GUHRING 9010180015900 is a cobalt jobber length drill bit designed for demanding metal drilling applications in professional shop and field environments. Built to DIN 338 standards, this bit features a 135-degree split point that reduces walking on entry and lowers thrust requirements compared to conventional 118-degree geometry. The bronze oxide coating provides lubricity and mild corrosion resistance. At 1/16 inch (1.59 mm) diameter with a parabolic flute design, it handles chip evacuation efficiently in both shallow and moderate-depth holes. Machinists, tool-and-die workers, and maintenance technicians working in production or MRO settings will find this bit well-suited to tight-tolerance, small-diameter work.

This drill bit is rated for use in aluminum, titanium alloy, and a broad range of materials corresponding to ISO material groups K, M, N, P, and S. Its compact 43 mm overall length and straight-cylindrical shank make it compatible with standard drill chucks and collet holders. The 5xD flute-to-diameter ratio and web-thinned geometry support applications where consistent, clean hole entry and full chip clearance are needed. Typical use cases include precision hole drilling in aerospace-grade alloys, general fabrication, and maintenance repair operations requiring small-diameter cobalt tooling.

Key Features

• 135-degree split point reduces entry thrust and minimizes bit walking on hard or smooth surfaces
• Parabolic flute geometry promotes efficient chip evacuation at the 5xD flute-to-diameter ratio
• Cobalt construction provides heat resistance for drilling hard and abrasive alloys
• Bronze oxide coating adds surface lubricity and light corrosion protection
• Web-thinned design lowers cutting force requirements for small-diameter holes
• Diameter tolerance h8 ensures consistent fit in precision chuck and collet setups

Compatibility

Designed for use in aluminum and titanium alloy workpieces, with compatibility spanning ISO material groups K, M, N, P, and S. Fits standard drill chucks and collet holders accepting a 1.59 mm straight-cylindrical shank. Conforms to DIN 338 and NAS specification designations.

Installation Notes

Install in a drill press, CNC machining center, or hand drill with a chuck rated for the 1.59 mm shank diameter. Secure the shank fully and verify runout before cutting. Power down and de-energize all equipment before changing or inspecting tooling. Follow applicable shop safety standards and machine manufacturer guidelines when operating at speeds appropriate for cobalt tooling in the target workpiece material.