Guhring 9003010002000 Micro Drill Bit Wire 92 Cobalt

Product Description

The GUHRING 9003010002000 is a cobalt micro drill bit designed for precision drilling in demanding applications. Built to DIN 1899 specification, it carries a wire gauge size of 92, which equals 0.0079 inches in decimal diameter, and features a 118-degree faceted point angle. The bright, uncoated cobalt construction delivers heat resistance and edge retention when cutting through hard or abrasive materials. The web-thinned, tapered web configuration reduces thrust force at entry, supporting cleaner hole starts in thin-section workpieces. Licensed tradespeople and precision machinists working in aerospace, toolroom, and production environments rely on this series for consistent micro-hole accuracy.

This drill bit is suited for operations on aluminum and titanium alloy workpieces, covering material codes K, M, N, P, and S. The Series 301 design with a 5xD flute-to-diameter ratio and a maximum drilling depth of 0.047 inches makes it appropriate for shallow micro-hole applications in production runs or prototype work. The straight-cylindrical shank with a 1.00 mm shank diameter seats securely in standard collets and precision chucks used in CNC machining centers and manual drill presses.

Key Features

• Wire size 92 micro diameter at 0.0079 inches for tight-tolerance bore work
• 118-degree faceted point with web thinning for reduced entry thrust
• Cobalt tool material provides elevated heat and wear resistance over standard HSS
• Bright, uncoated finish maintains dimensional integrity without coating buildup
• Regular spiral flute geometry promotes chip evacuation in shallow micro holes
• Conforms to DIN 1899 specification for consistent dimensional control

Compatibility

Designed as an OEM-style replacement or production-use micro drill for applications requiring DIN 1899 Series 301 cobalt straight-shank drill bits with a 1.00 mm shank diameter and wire size 92 diameter.

Installation Notes

Installation of micro drill bits should be performed by a qualified machinist or toolroom technician. Secure the straight-cylindrical shank in a precision collet or drill chuck rated for the shank diameter before use, and verify runout is within acceptable tolerance for the application. Always power down or lock out the spindle before changing tooling. Avoid applying excessive feed pressure, as micro-diameter drills are susceptible to deflection and breakage at high thrust loads.