Accupro A-6120049R Micro Drill Bit 0.49 Mm Solid Carbide

Product Description

The ACCUPRO A-6120049R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. With a 0.49 mm (0.0193 inch) cutting diameter and a 120-degree point angle, it delivers accurate hole placement and clean entry in hard and abrasive materials. The bright/uncoated finish suits applications where coating compatibility is a concern. At 25 mm overall length with a 2 mm flute length, this bit is built for shallow, precise bores. It is typically installed by machinists and precision fabricators working in electronics, medical device, and instrumentation manufacturing environments.

This micro drill bit is suited for use in CNC machining centers, micro-drilling fixtures, and precision drill presses handling small-diameter work. The straight-cylindrical shank at 1.00 mm diameter allows secure seating in standard collets and chucks sized for miniature tooling. The regular spiral flute promotes chip evacuation in short, controlled drilling passes. This bit is part of the Miniature series, aimed at applications requiring tight tolerances and repeatable hole geometry in metal, composites, and similar materials.

Key Features

• 0.49 mm cutting diameter (0.0193 inch decimal equivalent) for precision micro-drilling
• Solid carbide construction provides rigidity and wear resistance in hard materials
• 120-degree point angle for accurate positioning and reduced walking on entry
• Bright/uncoated finish compatible with a wide range of workpiece materials
• Regular spiral flute design assists chip clearance during drilling
• 1.00 mm straight-cylindrical shank fits standard miniature collets and chucks

Compatibility

Designed as an OEM-style miniature drill bit for use in precision drilling equipment accepting a 1.00 mm straight-cylindrical shank, including CNC machining centers and micro-drill presses configured for small-diameter tooling.

Installation Notes

Installation is performed by machinists or tool room technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully and evenly in the collet or chuck to prevent runout. Micro-diameter carbide bits are brittle — avoid side loading, excessive feed rates, or interrupted cuts that can cause breakage.