Guhring 9003010005800 Micro Drill Bit 0.0228 in Cobalt

Product Description

The GUHRING 9003010005800 is a cobalt micro drill bit designed for precision drilling in tight-diameter applications. Built to DIN 1899 specifications, it features a 0.0228-inch diameter with a 118-degree faceted point and a web-thinned, tapered web configuration that reduces entry force and improves centering. The spiral flute geometry promotes chip evacuation in shallow, small-bore holes. At 0.984 inches overall length with a straight-cylindrical shank, this bit is suited for use in CNC machining centers, drill presses, and high-speed spindle fixtures. Cobalt construction provides heat resistance and edge retention beyond standard HSS tooling. Intended for use by machinists and toolroom technicians working in precision manufacturing environments.

This micro drill bit is rated for primary use in aluminum and non-ferrous materials, with secondary suitability for titanium alloys. The 5xD flute-to-diameter ratio supports drilling to a maximum depth of 0.119 inches (3.03 mm). Bright uncoated finish is appropriate for materials where coated tooling may cause adhesion or galling. The Series 301 designation identifies this as a standard Guhring micro-drill product line conforming to DIN 1899 geometry. Typical applications include precision part manufacturing, electronics component housings, and aerospace detail work requiring consistent small-bore hole placement.

Key Features

• 0.0228-inch diameter cobalt construction for heat and wear resistance beyond standard HSS
• 118-degree faceted point with web thinning for reduced thrust and improved self-centering
• Spiral flute with 5xD ratio supports chip evacuation at depths up to 0.119 inches
• Straight-cylindrical shank at 1.00 mm diameter for standard collet and chuck compatibility
• Bright uncoated finish suited for aluminum, non-ferrous metals, and titanium alloys
• Conforms to DIN 1899 specification for consistent geometry and interchangeability

Compatibility

Rated for primary workpiece materials including aluminum and non-ferrous metals (material codes K, M, N, P) and secondary use in titanium alloys (material code S). Designed as a DIN 1899-compliant micro drill bit for use in precision CNC and manual drilling setups accepting a 1.00 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists familiar with micro-tooling handling practices. Secure the straight-cylindrical shank fully in a precision collet or chuck before operation to prevent runout-related breakage. Due to the small diameter, use appropriate spindle speeds and feed rates for the workpiece material - consult published cutting data for cobalt tooling at this diameter. Inspect the cutting edge under magnification before each use; micro drill bits are susceptible to edge chipping that is not visible to the naked eye.