Guhring 9003290060000 Cobalt Stub Drill Bit 6mm

Product Description

The GUHRING 9003290060000 is a cobalt (M35) screw machine length drill bit designed for demanding metal-cutting applications. Built to DIN 1897 standards, it features a 6.00 mm diameter with a 130-degree split point and oxide finish for heat resistance and extended tool life. The web-thinned, tapered web geometry reduces thrust force on entry and helps center the drill without a pilot hole. At 66.00 mm overall length with a 28.00 mm flute length, this stub-length bit delivers rigidity and reduced deflection in short-reach drilling operations. It is suited for machinists, toolroom technicians, and maintenance mechanics working with ferrous metals and high-temperature alloys.

This bit is optimized for drilling steel, stainless steel, cast iron, and high-temperature alloys in production and maintenance environments. The stub length format makes it well suited for CNC machining centers, drill presses, and hand-held power tools where reduced overhang improves accuracy and tool stability. The straight cylindrical shank fits standard drill chucks and collet systems sized for 6.00 mm shanks. Right-hand cutting direction is standard for conventional drilling setups.

Key Features

• M35 cobalt steel construction for heat and wear resistance in hard-metal drilling
• 130-degree point angle with cone relief for aggressive penetration and self-centering entry
• Web-thinned tapered web reduces axial thrust and minimizes drill walking
• Oxide coating finish improves lubricity and reduces built-up edge on ferrous materials
• DIN 1897 stub length provides maximum rigidity and reduced deflection
• Diameter tolerance held to +0.000 to -0.018 mm for consistent hole sizing

Compatibility

Designed as an OEM-specification replacement or production tooling choice for applications requiring a DIN 1897 stub-length drill bit in 6.00 mm diameter. Primary workpiece materials include steel, stainless steel, cast iron, and high-temperature alloys. Compatible with any standard drill chuck or collet accepting a 6.00 mm straight cylindrical shank.

Installation Notes

Install in a properly sized chuck or collet and verify shank seating and runout before drilling. Power down and de-energize all equipment before changing tooling. Use appropriate cutting fluid or coolant for stainless steel and high-temp alloy applications to manage heat buildup, as this bit does not support through-coolant delivery. Follow shop safety practices and applicable ANSI or OSHA machine guarding standards when operating drilling equipment.