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The MICRO 100 BB-140500 is a solid carbide boring bar designed for precision internal boring operations on manual and CNC lathes and boring machines. It features a 9/64 inch minimum bore diameter and a maximum bore depth of 1/2 inch, making it well-suited for tight-tolerance work in small-diameter holes. The 3/16 inch shank diameter and 2 inch overall length provide a compact, rigid setup that minimizes deflection during cutting. The right-hand cut orientation and 0.006 inch corner radius deliver clean, repeatable finishes in confined bores. Machinists and toolroom operators working with small-bore components rely on solid carbide construction for its wear resistance and dimensional stability.
This boring bar is intended for use in precision machining environments where small bore diameters demand tight dimensional control. It fits standard boring bar holders accepting a 3/16 inch shank and is applicable in job shop, production, and toolroom settings. Typical applications include finishing and semi-finishing of small internal diameters in ferrous and non-ferrous workpieces. The uncoated solid carbide construction is compatible with a range of cutting fluids and dry-cutting setups depending on workpiece material.
Designed for use in boring bar holders and tool blocks accepting a 3/16 inch round shank, as found on standard manual lathes, CNC turning centers, and dedicated boring machines.
Installation is performed by qualified machinists following standard toolroom practices. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before mounting the bar. Secure the shank firmly in the boring bar holder to the recommended clamping torque specified by the holder manufacturer. Verify bore alignment and runout before beginning the cut to avoid premature tool wear or workpiece damage.
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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