Guhring 9007680040000 Straight-flute Drill Bit 4mm

Product Description

The GUHRING 9007680040000 is a solid carbide straight-flute drill bit engineered for high-performance drilling in aluminum and non-ferrous materials. Built to Series 768 specifications, it features a 4.00 mm diameter, a 120-degree standard point, and a web-thinned tip geometry that reduces entry force and improves chip evacuation. The shank diameter is 6.00 mm, conforming to DIN 6535HA, and the tool is finished bright and uncoated, which suits aluminum applications where coatings can cause material adhesion. Coolant-through capability via round coolant holes supports higher feed rates and extended tool life in production environments. Cutting direction is right-hand with two flutes.

This drill bit is intended for machining aluminum, aluminum alloys, and cast iron in precision manufacturing and production settings. The straight-flute design promotes efficient chip clearing in short-chipping materials. With a maximum drilling depth of 24.00 mm and a flute-by-diameter ratio of 4xD, it fits standard CNC machining centers and production drill presses where close-tolerance hole quality is required. The submicron carbide grade supports demanding cycle rates typical in aerospace, automotive, and general metalworking shops.

Key Features

• Solid submicron carbide construction for wear resistance and dimensional stability
• Straight-flute geometry optimized for chip clearance in aluminum and short-chipping materials
• Web-thinned point reduces thrust force and improves hole entry accuracy
• Coolant-through design with round coolant holes supports high-feed production drilling
• DIN 6535HA shank for secure tool holding in standard collet and chuck systems
• Bright uncoated finish suited to aluminum and non-ferrous workpieces

Compatibility

Designed for use in CNC machining centers and production drill presses accepting a 6.00 mm straight shank per DIN 6535HA. Primary workpiece materials are aluminum and aluminum alloys; secondary compatibility includes cast iron.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before tool changes. Confirm the collet or chuck internal diameter matches the 6.00 mm shank before clamping. Use coolant supply appropriate for the workpiece material to protect both the tool and the part surface finish.