Guhring 9003010006000 Micro Drill Bit 0.0236in Cobalt

Product Description

The GUHRING 9003010006000 is a cobalt micro drill bit designed for precision drilling in demanding materials. Built to DIN 1899 specifications, this bit features a 118-degree faceted point with web thinning on a tapered web configuration, which reduces entry force and improves centering accuracy. The overall length is 0.984 inches, with a 1.00 mm straight-cylindrical shank and a spiral flute optimized at a 5xD flute-to-diameter ratio. Diameter tolerance is held to +0.000 to -0.004 mm, making it suitable for tight-tolerance work. The bright, uncoated cobalt construction provides heat resistance and hardness without an applied coating that could affect small-hole accuracy.

This micro drill bit is intended for precision machining applications where small-diameter hole quality is critical. Primary workpiece materials are aluminum and non-ferrous metals, with secondary suitability for titanium alloys. The 0.0236-inch diameter and 0.118-inch maximum drilling depth make this bit appropriate for circuit board work, instrument components, medical device manufacturing, and other applications requiring consistent micro-hole geometry. Right-hand cut direction and regular spiral type suit standard CNC and manual spindle setups. This bit is sold individually but requires a minimum order of 10 units.

Key Features

• Cobalt tool material for elevated heat and wear resistance compared to standard HSS
• 118-degree faceted point with web thinning for reduced thrust and improved self-centering
• DIN 1899 specification for consistent dimensional conformance
• Diameter tolerance of +0.000 to -0.004 mm for tight-tolerance hole requirements
• 5xD flute-to-diameter ratio provides chip evacuation in shallow micro-drilling applications
• Bright, uncoated finish preserves true diameter for sensitive material applications

Compatibility

Designed as an OEM-specification micro drill bit conforming to DIN 1899 Series 301, compatible with standard straight-shank collet chucks and micro-drill holders accepting a 1.00 mm shank diameter.

Installation Notes

This bit should be installed and operated by machinists or tooling technicians familiar with micro-diameter tooling. Ensure the spindle and collet are clean and true before seating the 1.00 mm shank, as runout at this diameter significantly affects hole quality and tool life. Use the lowest practical feed rate and a high-speed spindle appropriate for the workpiece material. Do not apply excessive axial force; the web-thinned point geometry is designed to minimize required thrust at proper feeds and speeds.