Accupro A-6120298R Micro Drill Bit 2.98 Mm Solid Carbide

Product Description

The ACCUPRO A-6120298R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. It measures 2.98 mm in diameter with an overall length of 38 mm and a flute length of 14 mm. The 120-degree point angle promotes accurate entry and reduces walking on hard or smooth surfaces. The bright, uncoated finish maintains close dimensional tolerances straight from the grind. This bit is suited for machinists, toolroom technicians, and precision fabricators working with small-diameter holes in metal, composites, or printed circuit board materials where carbide rigidity is required.

The A-6120298R fits into miniature-series drilling operations where standard twist bits are too large or lack the rigidity needed for accurate hole placement. It is commonly used in CNC machining centers, drill presses, and precision hand-held spindles for applications such as instrument components, electronic enclosures, small fastener holes, and detailed fixture work. The straight-cylindrical shank with a 3 mm diameter seats cleanly in standard collet chucks and Jacobs-style chucks sized for that range.

Key Features

• Solid carbide construction provides rigidity and wear resistance in hard materials
• 2.98 mm cutting diameter equals 0.1173 decimal inch for cross-reference with inch-based prints
• 120-degree standard point angle for clean entry and reduced thrust force
• Spiral flute with regular helix promotes chip evacuation in through-hole drilling
• Bright uncoated finish maintains tight diameter tolerances without coating buildup
• Straight-cylindrical 3 mm shank fits standard collet and drill chuck toolholders

Compatibility

Designed as a miniature-series solid carbide drill bit for use in any spindle or chuck that accepts a 3 mm straight-cylindrical shank, including CNC machining centers and benchtop drill presses configured for small-diameter work.

Installation Notes

This drill bit is installed by a machinist or toolroom technician into a compatible collet chuck or drill chuck rated for the 3 mm shank diameter. Confirm the spindle RPM and feed rate are appropriate for a 2.98 mm carbide tool in the workpiece material before engaging the cut. Never force or side-load a micro drill bit, as solid carbide is brittle and will fracture under lateral stress. Inspect the cutting edges for chipping before each use and replace the bit if edge damage is observed.