Guhring 9055190010200 Cobalt Jobber Drill Bit Size 60

Product Description

The GUHRING 9055190010200 is a cobalt jobber-length drill bit in wire gauge size 60 (0.0400 inch decimal equivalent), designed for precision drilling in metalworking applications. Built to DIN 338 standards and manufactured from M35 cobalt high-speed steel, this bit features a titanium nitride (TiN) coating to extend tool life and reduce friction at the cutting edge. The 118-degree four-facet split point delivers self-centering entry and minimizes walking on entry. With an overall length of 34.00 mm and a straight-cylindrical shank diameter of 1.02 mm, it is sized for use in precision drill chucks and CNC toolholders. A licensed HVAC tech, machinist, or tool and die professional will find this bit well suited to tight-tolerance work.

This bit is primarily intended for drilling aluminum and a range of ferrous and non-ferrous metals, consistent with its K, M, N, and P workpiece material classifications. The 5519 series targets applications requiring a compact, small-diameter drill with a 5xD flute-to-diameter ratio. The flute length is 12.00 mm with a maximum recommended drilling depth of 10.47 mm (0.4120 inch). Typical use cases include sheet metal, light structural components, and precision machined parts where a small-diameter, TiN-coated cobalt bit outperforms standard HSS tooling.

Key Features

• M35 cobalt steel construction for improved heat and wear resistance over standard HSS
• Titanium nitride (TiN) coating reduces friction and extends cutting life
• 118-degree four-facet split point for self-centering entry and reduced thrust force
• DIN 338 standard geometry ensures compatibility with standard jobber-length toolholders
• Web-thinned, tapered web configuration minimizes chisel-edge engagement
• Right-hand spiral flute with regular helix for efficient chip evacuation

Compatibility

Designed as an OEM-style replacement and standard production drill bit conforming to DIN 338 jobber-length specifications; compatible with any drill chuck or collet accepting a 1.02 mm straight-cylindrical shank.

Installation Notes

Install in a precision drill chuck or collet rated for the shank diameter before use. Secure the workpiece firmly to prevent movement during drilling. Always wear appropriate eye protection and observe applicable shop safety standards when operating rotary cutting tools. Do not exceed the recommended maximum drilling depth of 10.47 mm per pass without retracting to clear chips.