Guhring 9038990023000 Micro Drill Bit 2.3 Mm Carbide

Product Description

The GUHRING 9038990023000 is a solid carbide micro drill bit designed for precision drilling in ferrous materials including cast iron and steel. Part of the Series 3899, it features a 140-degree faceted point geometry with web thinning for accurate hole entry and reduced thrust. The TiAlN coating improves heat resistance and extends tool life in demanding production environments. With a 2.3 mm (0.0906 inch) diameter and a straight-cylindrical shank, this bit is suited for CNC machining centers and precision drill presses where tight tolerances are required. Installation and operation are handled by machinists and tooling specialists working to close-tolerance specifications.

This micro drill bit is intended for drilling cast iron and steel workpieces in applications where precise hole sizing and surface finish are critical. The h7 diameter tolerance makes it appropriate for press-fit and close-clearance hole applications. The 5xD flute-to-diameter ratio supports chip evacuation in short, controlled drilling cycles. It is typically used in job shop and production machining environments on CNC equipment where small-diameter, high-accuracy holes are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating for elevated heat resistance and extended tool life
• 140-degree faceted point with web thinning for clean entry and reduced walking
• h7 diameter tolerance for close-tolerance hole applications
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• Right-hand spiral flute for efficient chip evacuation in through and blind holes

Compatibility

Designed for use in cast iron and steel workpieces. Compatible with standard drill chucks and collet holders accepting a 3.0 mm straight-cylindrical shank. Suitable for CNC machining centers and precision drill presses capable of holding Series 3899 tooling.

Installation Notes

This tool should be installed by a qualified machinist using a properly sized collet or drill chuck rated for the 3.0 mm shank diameter. Ensure the machine spindle is fully stopped and locked out before changing tooling. Do not exceed the maximum drilling depth of 8.55 mm (0.3370 inch) in a single pass without a pecking cycle to clear chips. Verify runout and tool projection before initiating the drilling cycle.