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The ACCUPRO ACC-BB2301200 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning equipment. Built from submicron-grade carbide with a bright finish coating, it delivers consistent dimensional accuracy in tight-tolerance bores. The bar features a right-hand cutting direction, a minimum bore diameter of 0.23 inches, a maximum bore depth of 1.2 inches, a 5/16-inch shank diameter, and an overall length of 2.5 inches. Machinists and toolroom technicians select this bar when fine surface finish and repeatable bore geometry are required in small-diameter internal features.
This boring bar is suited for small-bore applications in job shops, production machining cells, and toolroom environments. It is appropriate for ferrous and non-ferrous workpiece materials where submicron carbide grade provides the required hardness and wear resistance. The right-hand cut orientation matches standard spindle rotation on the majority of CNC and manual lathes. Its compact overall length and 5/16-inch shank make it compatible with standard boring bar holders and quick-change toolpost systems commonly found in light-to-medium turning setups.
Designed as an OEM-style replacement or direct tooling selection for standard boring bar holders accepting a 5/16-inch shank diameter in right-hand cut orientation.
Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the machine is locked out before mounting or adjusting the boring bar. Set the bar at center height in the holder and secure with adequate clamping torque per your toolpost manufacturer specifications. Inspect the cutting edge for chips or damage before use and confirm the boring bar extension does not exceed the minimum supported overhang recommended for the shank diameter.
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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