Guhring 9055190095200 Cobalt Drill Bit 3/8 in

Product Description

The GUHRING 9055190095200 is a cobalt jobber length drill bit designed for demanding metal drilling applications. Built to DIN 338 standards, it features a titanium nitride (TiN) coating over an M35 cobalt steel body, delivering improved wear resistance and heat tolerance compared to standard HSS bits. The 3/8-inch (0.3750 inch) diameter bit has a four-facet split point at 118 degrees, a regular spiral flute, and a web-thinned, tapered web configuration. Overall length is 133 mm with a flute length of 87 mm. Licensed machinists, tool and die techs, and industrial maintenance personnel are the primary installers of this tool.

This drill bit is intended for use in metalworking environments where cobalt tooling is specified for harder or more abrasive workpiece materials. The DIN 338 jobber length format makes it compatible with standard drill chucks and drill presses used in both job-shop and production settings. Primary workpiece material codes K, M, N, and P cover aluminum, cast iron, non-ferrous metals, and steel, making this a versatile choice across a range of common shop materials. It is sold individually and is suited for applications requiring precise hole sizing in the 0.3500 to 0.4000 inch diameter range.

Key Features

• M35 cobalt steel construction for elevated heat and wear resistance
• Titanium nitride (TiN) coating extends tool life on abrasive materials
• Four-facet split point at 118 degrees reduces walking and thrust load at entry
• Web-thinned tapered web improves chip evacuation and reduces cutting force
• Right-hand cut, regular spiral flute with 2-flute design for efficient chip clearance
• DIN 338 standard jobber length for compatibility with standard drill chucks

Compatibility

Designed for use with standard 3/8-inch straight-cylindrical shank drill chucks. Suitable for primary workpiece material codes K, M, N, and P as designated in the product specifications, covering aluminum, non-ferrous metals, cast iron, and steel. Fits the 0.3500 to 0.4000 inch drill bit size range per DIN 338 Series 5519.

Installation Notes

This bit is installed by machinists or maintenance technicians using a keyed or keyless drill chuck on a drill press, mill, or handheld power drill. Ensure the shank is fully seated and the chuck is tightened securely before operation. Coolant-through is not supported on this bit, so external coolant or cutting fluid should be applied when drilling harder materials to manage heat buildup. Inspect the cutting edges for wear or chipping before each use and replace when dimensional accuracy degrades.