Accupro A-6200080R Micro Drill Bit 0.8 Mm Solid Carbide

Product Description

The ACCUPRO A-6200080R is a solid carbide micro drill bit designed for precision drilling in small-diameter applications. Measuring 0.8 mm (0.0315 inches) in diameter with a 50 mm overall length, this bit features a 140-degree point angle that promotes accurate entry and reduces walking on hard materials. The bright, uncoated finish maintains a sharp cutting edge without added coating thickness, making it well suited for tight-tolerance holes. Right-hand spiral flutes with a regular helix aid chip evacuation during through-hole and blind-hole operations. Machinists, toolroom technicians, and CNC operators install this bit for high-precision micro-drilling work.

This miniature series drill bit is used in applications requiring small, precise holes in metals, composites, and similar materials. Typical scenarios include printed circuit board production, instrument manufacturing, mold work, and precision machining environments where standard small drill bits are too large. The straight-cylindrical shank with a 3 mm diameter fits standard collet chucks and drill chucks sized for miniature tooling. No coolant-through capability is present, so surface-applied coolant or dry cutting techniques apply based on material requirements.

Key Features

• 0.8 mm (0.0315 inch) cutting diameter for micro-precision applications
• Solid carbide construction for rigidity and wear resistance in hard materials
• 140-degree point angle for accurate positioning and reduced thrust force
• Bright, uncoated finish maintains tight dimensional tolerance on cutting edge
• Right-hand cut with regular spiral flutes for efficient chip removal
• 3 mm straight-cylindrical shank for compatibility with standard miniature collet chucks

Compatibility

Designed as a miniature series replacement or standard drill bit for use in CNC machining centers, drill presses, and hand-held precision drilling equipment fitted with collet or drill chucks accepting a 3 mm straight shank.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the collet or chuck is clean and undamaged before seating the shank. Secure the shank to the full depth recommended by the chuck manufacturer to prevent runout. At 0.8 mm diameter, carbide is brittle — avoid lateral pressure, interrupted cuts without proper feed control, or off-center starting positions that can cause breakage.