Guhring 9003010009000 Micro Drill Bit 0.0354 in Cobalt

Product Description

The GUHRING 9003010009000 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. Built to DIN 1899 standards, it features a 118-degree faceted point and a web-thinned, tapered web configuration that reduces entry force and improves centering on tight-tolerance work. The overall length is 0.984 inches with a straight-cylindrical shank measuring 1.50 mm in diameter. The spiral flute geometry promotes chip evacuation in shallow-depth holes. This bit ships bright and uncoated, which is appropriate for applications where coating buildup tolerance is a concern. It is installed by machinists, tool-and-die technicians, and precision fabricators.

The 9003010009000 is rated primarily for aluminum and secondarily for titanium alloy workpieces. It carries a flute-to-diameter ratio of 5xD and a maximum drilling depth of 0.183 inches (4.65 mm). The right-hand cut, regular spiral, and straight-cylindrical shank make it compatible with standard precision collet chucks and micro-drill chuck systems used in CNC machining centers, drill presses, and hand-held precision drilling stations. Coolant-through capability is not available on this model, so flood or mist cooling at the workpiece surface is the typical approach for heat management in cobalt micro-drill applications.

Key Features

• Cobalt construction for improved heat and wear resistance in hard and abrasive materials
• 118-degree faceted drill point for accurate entry on aluminum and titanium alloy workpieces
• Web-thinned, tapered web configuration reduces thrust force and improves hole entry
• Bright/uncoated finish suitable where coating interference is not acceptable
• DIN 1899 specification ensures dimensional consistency across production runs
• Diameter tolerance held to +0.000 to -0.004 mm for repeatable precision fitment

Compatibility

Designed as an OEM-specification micro drill bit per DIN 1899 Series 301, suited for use with standard straight-cylindrical collet chucks and micro-drill chuck systems compatible with a 1.50 mm shank diameter. Primary workpiece material is aluminum; secondary workpiece material is titanium alloy.

Installation Notes

Micro drill bits at this diameter require secure, concentric chuck clamping to minimize runout, which is the leading cause of premature breakage on sub-1 mm tooling. Ensure spindle speeds and feed rates conform to the machine manufacturer and tooling guidelines for cobalt micro drills in the target workpiece material. Coolant-through is not available on this bit, so apply flood or mist cooling externally and use peck-drilling cycles to clear chips and reduce heat buildup. Inspect the bit for chipping or flute damage before each use, as micro-diameter cobalt tooling is sensitive to side-load forces.