Guhring 9003010005200 Cobalt Micro Drill Bit 0.0205in

Product Description

The GUHRING 9003010005200 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. Built to DIN 1899 standards, it features a 0.0205-inch diameter with a 118-degree faceted point and a web-thinned, tapered web configuration for reduced thrust and cleaner entry. The spiral flute geometry promotes chip evacuation in shallow-hole drilling operations. The overall length is 0.984 inches with a 1.00 mm straight-cylindrical shank. This bit is suited for use in CNC machining centers, benchtop drill presses, and precision hand-held applications where tight tolerances and small-diameter holes are required.

This micro drill bit is rated primarily for aluminum and secondarily for titanium alloys, covering material codes K, M, N, P, and S. The 5xD flute-to-diameter ratio and right-hand spiral cut make it appropriate for short, controlled passes in precision components. Maximum drilling depth is 0.103 inches (2.62 mm), consistent with micro-drill applications. It is well-suited to electronics, aerospace component fabrication, and fine mechanical assemblies where hole diameter consistency and surface finish matter. Machining professionals and tool-and-die technicians are the primary installers of this bit type.

Key Features

• DIN 1899 specification for standardized micro-drill geometry and dimensional tolerance
• Cobalt construction for elevated heat and wear resistance compared to standard HSS
• 118-degree faceted point with web thinning for reduced entry thrust and improved centering
• Bright/uncoated finish, suitable for use with cutting fluids on aluminum and titanium alloy workpieces
• Right-hand cut, regular spiral flute for efficient chip removal in short-depth holes
• Diameter tolerance of +0.000 to -0.004 mm for consistent, repeatable hole sizing

Compatibility

Designed for drilling aluminum (material codes K, M, N, P) as a primary workpiece material and titanium alloy (material code S) as a secondary workpiece material. Suitable for use with standard 1.00 mm straight-cylindrical shank collets and chucks rated for micro-diameter tooling.

Installation Notes

This bit is installed by machinists and tooling technicians in CNC or manual drilling equipment with an appropriate collet or chuck accepting a 1.00 mm straight shank. Power down or e-stop the machine and confirm zero spindle rotation before changing tooling. Micro drill bits are brittle at this diameter — avoid side loading, misaligned entry angles, and excessive feed rates. Use cutting fluid appropriate for the workpiece material to extend tool life and maintain hole quality.