Guhring 9006600002900 Micro Drill Bit Size 84 Cobalt

Product Description

The GUHRING 9006600002900 is a wire gauge size 84 micro drill bit designed for precision drilling in small-diameter applications. Built from cobalt high-speed steel with a TiN (titanium nitride) coating, it delivers extended tool life and improved wear resistance compared to standard HSS tooling. The 118-degree faceted point with web thinning promotes accurate hole entry and reduces thrust force. At 0.9840 inches overall length with a 0.0114-inch decimal diameter, this bit is suited for machine-tool applications where tight tolerances and repeatability are critical. It follows DIN 1899 specification and is manufactured to a diameter tolerance of +0.000 to -0.004 mm.

This micro drill bit is used in precision machining environments where small-diameter holes are required in aluminum, non-ferrous metals, and titanium alloys. The spiral flute geometry with a 5xD flute-to-diameter ratio promotes chip evacuation in shallow-depth applications. Maximum drilling depth is 0.0580 inches (1.47 mm). The straight-cylindrical shank with a 1.00 mm shank diameter fits standard precision collets and drill chucks used in CNC machining centers, drill presses, and bench-top precision equipment. It ships individually but requires a minimum order quantity of 10 units.

Key Features

• Cobalt construction with TiN coating for extended tool life in abrasive and hard materials
• 118-degree faceted drill point with web thinning for accurate entry and reduced thrust
• Wire gauge size 84 — 0.0114 inch decimal diameter
• Spiral flute, regular spiral type, 5xD flute-by-diameter ratio for controlled chip removal
• Straight-cylindrical shank, 1.00 mm diameter, fits standard precision collets
• Conforms to DIN 1899 specification with tapered web configuration

Compatibility

Rated for primary use in aluminum and non-ferrous materials (material codes K, M, N, P) and secondary use in titanium alloys (material code S). Fits standard precision collets and drill chucks accepting a 1.00 mm straight-cylindrical shank.

Installation Notes

This micro drill bit is installed and serviced by machinists and tooling technicians using precision collet systems. Ensure the spindle and work-holding fixture are fully stopped and de-energized before changing tooling. At 0.0114-inch diameter, the bit is highly susceptible to breakage from misalignment, excessive feed rate, or runout — verify collet concentricity before use. Coolant-through is not supported; use external cutting fluid or mist cooling appropriate to the workpiece material.