Guhring 9003010002550 Micro Drill Bit 0.0100 in Cobalt

Product Description

The GUHRING 9003010002550 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. Built to DIN 1899 specification, this Series 301 bit measures 0.0100 inches in diameter with a 118-degree faceted point and a web-thinned, tapered web configuration for cleaner entry and reduced thrust. The straight-cylindrical shank measures 1.00 mm in diameter. The bright/uncoated cobalt construction handles heat and wear in demanding materials without the need for a coating. A licensed machinist or toolroom technician is the typical installer for this class of tooling.

This micro drill bit is intended for precision drilling in aluminum as its primary workpiece material, with titanium alloy as a secondary application. The 5xD flute-to-diameter ratio and 1.90 mm flute length are suited for shallow-hole work, with a maximum drilling depth of 0.060 inches (1.52 mm). It carries an overall length of approximately 0.984 inches (25.00 mm), making it appropriate for use in CNC machining centers, precision drill presses, and high-speed hand-held spindles where micro-hole accuracy is required.

Key Features

• Cobalt tool material for elevated-temperature resistance in aluminum and titanium alloy applications
• 118-degree faceted point for controlled entry in tight-tolerance micro-drilling
• Web-thinned, tapered web configuration reduces axial thrust and improves chip evacuation
• DIN 1899 specification with straight-cylindrical shank for broad collet and chuck compatibility
• Spiral flute type with regular spiral for consistent chip flow in shallow drilling
• Diameter tolerance of +0.000 to -0.004 mm for close-tolerance hole sizing

Compatibility

Designed as an OEM-style precision micro drill bit per DIN 1899, suitable for use in standard straight-shank collet chucks and precision drill chucks accepting a 1.00 mm shank diameter.

Installation Notes

This tooling should be installed and operated by a qualified machinist or toolroom technician familiar with micro-diameter drill handling. Secure the shank fully in a precision collet or drill chuck rated for the intended spindle speed before starting the machine. Micro drills are extremely fragile at this diameter - excessive feed rate, misalignment, or runout will result in breakage. Follow the machine tool manufacturer's recommended speeds and feeds for cobalt tooling in the target workpiece material.