Accupro A-6120070R Micro Drill Bit 0.7 Mm Solid Carbide

Product Description

The ACCUPRO A-6120070R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built to a 0.7 mm diameter (0.0276 inch decimal equivalent), it features a 120-degree point angle and a spiral flute configuration that promotes clean chip evacuation in small-diameter work. The overall length is 30 mm, with a flute length of 3.8 mm and a straight-cylindrical shank measuring 1.5 mm in diameter. The bright, uncoated finish makes it well-suited for use in materials where coated tools can introduce dimensional variance. Machinists and tool-and-die professionals are the primary installers for this type of bit.

This micro drill bit belongs to the Miniature series and is intended for precision drilling operations where standard drill bits are too large. Typical applications include PCB drilling, watch and instrument components, medical device manufacturing, and fine metalwork requiring controlled entry geometry. Right-hand cut and regular spiral type make it compatible with conventional CNC and bench-top drilling setups running standard right-hand rotation spindles.

Key Features

• 0.7 mm diameter with 0.0276 inch decimal equivalent for tight-tolerance work
• 120-degree standard point angle for accurate positioning and reduced walking
• Solid carbide construction for rigidity and wear resistance in micro-drilling applications
• Spiral flute design promotes chip evacuation in small-diameter holes
• Bright, uncoated finish — no coating buildup that could affect bore diameter
• Straight-cylindrical shank at 1.5 mm fits standard micro collets and drill chucks

Compatibility

Designed for use in CNC machining centers, micro drilling stations, and bench-top drill presses equipped with collets or chucks accepting a 1.5 mm straight-cylindrical shank.

Installation Notes

Installation and use of micro drill bits should be performed by qualified machinists familiar with small-diameter tooling. Ensure the spindle is fully stopped before inserting or removing the bit from the collet or chuck. Micro carbide bits are brittle — avoid side loads, misalignment, or hand pressure that deviates from the drill axis. Use appropriate spindle speeds and feed rates for the workpiece material and bit diameter to prevent breakage.