Guhring 9055110066000 Carbide Jobber Drill Bit 6.6 Mm

Product Description

The GUHRING 9055110066000 is a solid carbide jobber-length drill bit engineered for high-performance drilling in ferrous materials. Built to DIN 6537L standards, it features a 6.6 mm diameter, a 140-degree split-point (SU) tip geometry, and a FIREX coating that extends tool life in demanding production environments. The submicron carbide grade and web-thinned, tapered web construction reduce entry force and improve chip evacuation. Coolant-through capability supports sustained drilling at higher feeds and speeds. This bit is sized for precision work with a diameter tolerance of 0.006 to 0.021 mm, making it a reliable choice for machinists and tool-room technicians running automated or manual drilling operations.

The 9055110066000 is suited for drilling cast iron and steel in both production-shop and maintenance environments. Its 5xD flute-to-diameter ratio and self-centering point geometry make it effective in applications where hole positioning accuracy and consistent depth control are required. The straight-cylindrical shank seats in standard drill chucks and collet holders without modification, allowing drop-in use on CNC machining centers, drill presses, and hand-held power tools where shank diameter accommodates the 0.315-inch shank.

Key Features

• FIREX coating for improved wear resistance and heat management in steel and cast iron
• 140-degree SU split-point tip for self-centering entry and reduced thrust force
• Coolant-through design supports chip flushing and heat control at depth
• Web-thinned tapered web reduces drilling torque and extends tool life
• Submicron solid carbide grade delivers consistent performance in high-hardness materials
• Conforms to DIN 6537L and DIN 6535 standards for dimensional reliability

Compatibility

Designed for use in drilling cast iron and steel workpieces; primary workpiece material codes K and P. Compatible with standard drill chucks and collet systems accepting a straight-cylindrical shank of 0.315 inches in diameter.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Ensure the machine spindle and workholding are fully stopped and secured before inserting or removing the bit. Carbide tooling is brittle and susceptible to chipping from lateral shock or improper clamping; verify runout and chuck concentricity before operation. Always apply coolant through the spindle when the machine supports it to maximize tool life at the rated drilling depth.