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The MICRO 100 BB-080300S is a solid carbide boring bar designed for precision internal turning operations on small-diameter bores. With a minimum bore diameter of 0.08 inches and a maximum bore depth of 0.3 inches, this bar is built for tight, close-tolerance work where rigidity and dimensional accuracy are critical. The 1/8-inch shank diameter and 1.5-inch overall length make it well-suited for compact CNC and manual lathe setups. The bright, uncoated finish is standard for carbide tooling intended for close inspection and regrinding flexibility. Machinists and toolroom operators working on micro-bore applications will find this bar a direct fit for precision finishing passes.
This boring bar is used in machine shop environments where small internal diameters must be held to tight tolerances. It is appropriate for both CNC turning centers and manual lathes equipped with small-bore tool holders accepting a 1/8-inch shank. Typical applications include bore finishing, counterbore creation, and internal diameter cleanup in ferrous and non-ferrous workpieces. The right-hand cutting direction is standard for conventional lathe rotation. This bar is suited to professional machinists, tool and die makers, and precision manufacturing operations.
Designed as an OEM-style replacement and standard fit for small-bore tool holders accepting a 1/8-inch shank diameter on CNC turning centers and manual lathes.
Installation and setup should be performed by a qualified machinist familiar with boring bar tool holding and lathe operation. Ensure the lathe spindle is fully stopped and locked out before mounting or adjusting the boring bar. Secure the 1/8-inch shank firmly in the tool holder to the manufacturer-recommended clamping specification for that holder. Verify bore alignment and runout before beginning any cutting pass.
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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