Guhring 9003360067000 Taper Length Drill Bit 6.7mm Cobalt

Product Description

The GUHRING 9003360067000 is a taper length twist drill bit in the Series 336 line, manufactured from M-35 cobalt high-speed steel. It carries a 6.7 mm diameter with a 130-degree cone relief point and a parabolic flute profile. The bright, uncoated finish keeps the tool ready for immediate use without additional prep. With a flute length of 97 mm and an overall length of 148 mm, this bit handles deeper drilling applications than standard jobber-length drills. It is installed by machinists, tool-and-die specialists, and maintenance technicians working with harder materials where cobalt tooling is required.

This drill bit is suited for drilling into alloy steels, stainless steels, cast iron, and other tough materials in production or maintenance environments. The parabolic flute geometry improves chip evacuation during deep-hole drilling, reducing heat buildup and the need to peck cycle as frequently. The cylindrical shank fits standard drill chucks and collet systems without adapters. It is a right-hand cut tool designed for conventional CNC machining centers, drill presses, and hand-held drilling equipment where a taper length reach is required.

Key Features

• M-35 cobalt construction for improved heat and wear resistance in hard materials
• 130-degree cone relief point for clean entry and reduced thrust force
• Parabolic flute profile promotes efficient chip evacuation in deep-hole drilling
• Taper length body provides extended reach compared to jobber-length drills
• Web-thinned geometry reduces centering force and improves cut initiation
• Conforms to DIN 340 standard for consistent dimensional tolerances

Compatibility

Designed as a DIN 340 taper length drill bit with a 6.7 mm cylindrical shank and h8 diameter tolerance, compatible with standard drill chucks and collet holders accepting 6.7 mm round-shank tooling.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Ensure the drill chuck or collet is fully secured and the workpiece is clamped before engaging the spindle. Inspect the cutting edges and point geometry before each use and replace the bit if chipping or deformation is observed. Follow machine manufacturer guidelines for spindle speed and feed rate when working with cobalt tooling in hard materials.