Guhring 9003010005900 Cobalt Micro Drill Bit 0.0232 in

Product Description

The GUHRING 9003010005900 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. Built to DIN 1899 specification, this bit features a 118-degree faceted point with web thinning for reduced thrust and clean entry. The 0.0232-inch diameter and 0.984-inch overall length make it suited for tight-tolerance work where standard jobber bits are too large. The bright uncoated cobalt construction provides heat resistance and edge retention in demanding materials. Right-hand spiral flutes evacuate chips efficiently in shallow-hole drilling scenarios. This bit is typically installed by machinists, toolroom technicians, and precision fabricators working on small-component manufacturing lines or repair applications.

This micro drill bit is rated for aluminum as its primary workpiece material, with titanium alloy listed as a secondary workpiece material. At a 5xD flute-by-diameter ratio, it handles drilling depths up to 0.119 inches. The regular spiral flute geometry and tapered web configuration support consistent performance across non-ferrous metals and select alloys. It is appropriate for use in CNC machining centers, benchtop drill presses, and precision hand-held drilling fixtures where runout and chuck concentricity are tightly controlled.

Key Features

• 0.0232-inch diameter cobalt construction for heat and wear resistance
• 118-degree faceted point with web thinning reduces entry thrust
• Tapered web configuration supports chip clearance in micro-diameter bores
• Bright uncoated finish compatible with cutting fluids and coolants
• Right-hand cut with regular spiral flutes for consistent chip evacuation
• Built to DIN 1899 specification with a diameter tolerance of +0.000 to -0.004 mm

Compatibility

Designed for drilling aluminum, non-ferrous metals, and titanium alloys. Primary workpiece material codes K, M, N, and P; secondary workpiece material code S. Suited for applications requiring DIN 1899-compliant micro drill tooling with a 1.00 mm straight-cylindrical shank.

Installation Notes

This bit should be installed by qualified machinists or toolroom personnel familiar with micro-diameter tooling. Before installation, verify chuck or collet concentricity to minimize runout, which is critical at sub-1mm diameters. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality. Handle micro bits carefully to avoid tip damage before use.