Guhring 9007680042000 Solid Carbide Die Drill Bit

Product Description

The GUHRING 9007680042000 is a solid carbide, straight-flute die drill bit engineered for precision drilling in non-ferrous metals and cast iron. Part of the GUHRING Series 768, this bit features a 4.20 mm (0.1654 inch) diameter, a 120-degree standard point angle, and through-coolant capability via a round coolant hole. The submicron carbide grade and web-thinned geometry combine to reduce cutting forces and improve chip evacuation in demanding applications. Right-hand cutting direction and an uncoated finish make it well suited for aluminum and aluminum alloy workpieces where coating buildup is a concern.

This drill bit is designed for use in die and mold work, precision machining centers, and high-production environments where tight tolerances and reliable performance are required. The straight-flute design is optimized for aluminum, aluminum alloys, and cast iron. With a 4xD flute-to-diameter ratio and a maximum drilling depth of 23.70 mm (0.9330 inches), it handles through-hole and blind-hole operations in short to medium depth applications. The DIN 6535HA shank specification ensures compatibility with standard toolholders used in CNC machining operations.

Key Features

• Solid submicron carbide construction for rigidity and wear resistance in non-ferrous and cast iron materials
• Through-coolant design with round coolant hole for effective chip flushing and thermal control at the cutting edge
• Web-thinned geometry reduces thrust force and improves entry stability
• 120-degree standard point angle suited for aluminum and aluminum alloy drilling
• DIN 6535HA shank conforms to standard CNC toolholder specifications
• Uncoated finish prevents built-up edge on aluminum and soft non-ferrous workpieces

Compatibility

Designed for use with standard DIN 6535HA-compliant toolholders. Primary workpiece materials are aluminum and aluminum alloys (material grade K, N); secondary compatibility includes cast iron. Consult GUHRING Series 768 documentation for full application parameters.

Installation Notes

This bit is installed and serviced by machinists and toolroom technicians operating CNC machining centers or precision drill presses. Power down and fully de-energize the machine spindle before changing tooling. Verify toolholder runout is within acceptable limits before use, as excess runout accelerates carbide wear and can cause premature breakage. Connect through-coolant supply to the machine spindle coolant circuit to activate internal cooling during operation.