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The ACCUPRO A-6120227R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. Built from solid carbide throughout, it delivers the rigidity and wear resistance needed when working with hard materials at small diameters. The 2.27 mm cutting diameter and 120-degree point angle promote accurate entry and clean hole formation with minimal wandering. A spiral flute geometry evacuates chips efficiently along the 12 mm flute length. At 38 mm overall length, the bit fits standard micro drill chucks and CNC spindles used in precision machining, electronics assembly, and small-component fabrication work.
This miniature drill bit is suited for machinists, toolmakers, and production floor operators drilling small-diameter holes in metal, composite, or plastic workpieces. It handles both manual drill press setups and CNC machining center applications where consistent hole geometry at sub-3 mm diameters is required. The right-hand cut orientation matches conventional spindle rotation on standard machine tools. The straight-cylindrical shank with a 3 mm diameter seats securely in collet chucks or standard Jacobs-style drill chucks used across bench-top and production equipment.
Designed as a miniature-series replacement or spare drill bit for use in any machine tool or drill press equipped with a collet or chuck accepting a 3 mm straight-cylindrical shank.
Installation and use of this drill bit should be performed by qualified machinists or toolroom personnel familiar with small-diameter tooling. Power down and lock out the spindle before seating or removing the bit from the chuck. Secure the shank fully within the collet or chuck to prevent runout, which is critical at micro drill diameters. Avoid side-loading the bit during operation, as solid carbide is brittle and susceptible to breakage under lateral force.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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