Guhring 9007690075000 Carbide Drill Bit 7.5 Mm

Product Description

The GUHRING 9007690075000 is a straight-flute carbide drill bit designed for high-performance drilling in aluminum and non-ferrous materials. Built from submicron carbide with a bright, uncoated finish, it delivers consistent dimensional accuracy with a diameter tolerance of +0.006 to +0.021 mm. The 7.5 mm cutting diameter pairs with a 120-degree standard point angle and web-thinned geometry to reduce entry thrust and improve chip evacuation. Through-spindle coolant is supported via a round coolant hole, making this bit well suited for CNC machining centers and production drilling applications where thermal management is critical.

This drill bit is intended for professional machining environments requiring precise hole quality in aluminum, aluminum alloy, and cast iron workpieces. The Series 769 design carries a 7xD flute-to-diameter ratio, providing a maximum drilling depth of 64.75 mm. It conforms to DIN 6535HA shank specifications, fitting standard toolholder collets used in CNC mills and machining centers. Machinists and toolroom technicians working in production or job-shop settings will find it appropriate for through-holes and blind-hole applications where tight tolerances are required.

Key Features

• Submicron carbide construction for extended tool life in non-ferrous materials
• 120-degree standard point angle with web-thinned geometry reduces entry thrust
• Through-coolant capability via round coolant hole supports high-speed production drilling
• DIN 6535HA shank compliance ensures compatibility with standard CNC toolholders
• Right-hand cutting direction with 2-flute straight-flute design for controlled chip flow
• Diameter tolerance of +0.006 to +0.021 mm for consistent, accurate hole sizing

Compatibility

Designed as a DIN 6535HA straight-shank drill bit for use in CNC machining centers and toolholders accepting an 8 mm shank diameter. Rated for primary use in aluminum and aluminum alloy workpieces, with secondary applicability in cast iron.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with CNC toolholding systems. Ensure the machine spindle is fully stopped and the tool-change sequence is complete before seating or removing the bit from its collet or chuck. Verify coolant line pressure and flow before initiating through-coolant drilling cycles. Confirm workpiece fixturing is rigid and secure to prevent deflection that could compromise hole tolerance or cause tool breakage.