Guhring 9006050038000 Cobalt Jobber Drill Bit No. 25

Product Description

The GUHRING 9006050038000 is a cobalt jobber length drill bit designed for high-performance drilling in hard and abrasive materials. Built to DIN 338 standards, this Series 605 bit carries an M35 cobalt steel grade, giving it the heat resistance and edge retention needed for demanding applications. It features a 130-degree split point for accurate entry without walking, a web-thinned tapered web to reduce thrust, and a regular spiral flute geometry optimized for chip evacuation. The straight-cylindrical shank measures 3.80 mm (0.1496 inches) in diameter, and overall length is 75.00 mm. Installation is performed by licensed machinists and metalworking professionals.

This drill bit is rated for use in titanium alloy and similarly tough workpiece materials classified under material codes M and S. The 130-degree split point geometry makes it particularly effective where controlled entry and reduced thrust are priorities. With a flute length of 43.00 mm and a maximum drilling depth of 37.30 mm (1.4690 inches), it suits jobber-length drilling tasks in production and maintenance environments. The two-flute spiral design supports efficient chip clearing in both through-hole and blind-hole operations. No coolant-through capability is present, so flood or mist cooling applied externally is the standard approach when drilling heat-sensitive alloys.

Key Features

• M35 cobalt steel construction for heat resistance in hard-material drilling
• 130-degree split point with web thinning reduces thrust and improves hole entry accuracy
• DIN 338 standard jobber length for broad compatibility with standard drill chucks
• Regular two-flute spiral geometry promotes efficient chip evacuation
• Bright uncoated finish — no coating buildup to affect dimensional accuracy on close-tolerance holes
• Straight-cylindrical shank at 0.1496 inches fits standard keyed and keyless chucks

Compatibility

Designed as a DIN 338 jobber length drill bit suitable for standard drill chucks accepting a 3.80 mm straight-cylindrical shank. Primary workpiece material ratings cover titanium alloy and high-strength ferrous alloys in material groups M and S.

Installation Notes

This bit is installed and operated by machinists or metalworking technicians using a drill press, CNC machining center, or hand-held power drill with an appropriate chuck. Secure the shank fully in the chuck before operation and verify runout is within acceptable limits for the application. Because no coolant-through channel is present, apply external flood or mist coolant when drilling titanium or high-strength alloys to manage heat buildup and extend tool life. Inspect the cutting edges before each use and remove from service if chipping or deformation is observed.