Accupro A-6120054R Micro Drill Bit 0.54 Mm Solid Carbide

Product Description

The ACCUPRO A-6120054R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. At 0.54 mm (0.0213 inches) in diameter with a 25 mm overall length, this bit is built for tight-tolerance work where standard tooling cannot reach. The 120-degree point angle promotes accurate entry and reduces walking on hard or brittle materials. Bright/uncoated finish makes it a general-purpose option suitable for a wide range of workpiece materials. Right-hand spiral flute geometry clears chips efficiently during operation. Machinists, toolmakers, and precision fabricators who need reliable micro-drilling performance will find this bit fits standard miniature-series tooling setups.

This bit is used in applications requiring small-diameter through-holes or blind holes in metals, plastics, printed circuit boards, and similar materials. The straight-cylindrical shank with a 1.00 mm shank diameter seats securely in collet chucks and precision drill chucks commonly found on CNC machining centers, drill presses, and manual micro-drilling stations. The 2.80 mm flute length provides adequate chip evacuation for typical micro-hole depths in production and prototype environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in micro-drilling applications
• 0.54 mm diameter with 0.0213-inch decimal equivalent for precise sizing
• 120-degree standard point angle for accurate entry and reduced drill walk
• Bright/uncoated finish suitable for general-purpose drilling across multiple materials
• Right-hand spiral flute design promotes efficient chip evacuation
• 1.00 mm straight-cylindrical shank compatible with standard collet and drill chuck systems

Compatibility

Designed as a miniature-series micro drill bit compatible with collet chucks and precision drill chucks accepting a 1.00 mm straight-cylindrical shank.

Installation Notes

Micro drill bits of this diameter are installed and operated by machinists using precision collet chucks or micro drill chucks rated for the shank diameter. Ensure the machine spindle is stopped and locked before inserting or removing the bit. At sub-millimeter diameters, excessive feed rate or lateral force will cause bit breakage — follow the machine manufacturer and tooling manufacturer recommended speeds and feeds for solid carbide micro drills. Inspect the cutting edges under magnification before use to confirm no chipping is present.