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The ACCUPRO ACC-BB4901500 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Ground from submicron-grade carbide, it delivers a minimum bore diameter of 0.49 inches and a maximum bore depth of 1.5 inches. The 1/2-inch shank diameter provides rigid tool holding in standard boring bar holders, and the bright finish reduces built-up edge in non-ferrous and alloy machining. At 3 inches overall length, this bar suits typical short-reach boring applications where rigidity and dimensional accuracy are the priority. Machinists and toolroom technicians rely on submicron carbide grade for its fine grain structure and edge stability at higher cutting speeds.
This boring bar is suited for light to medium material removal in production and job-shop environments. Right-hand cutting direction makes it compatible with conventional spindle rotation on standard lathes and machining centers. Typical applications include through-bore finishing, counterbore sizing, and ID feature refinement in steel, cast iron, aluminum, and similar materials. The 0.49-inch minimum bore makes it practical for smaller diameter features where insert-style boring bars cannot reach or hold adequate rigidity.
Designed as an OEM-style replacement or direct-fit tooling for standard 1/2-inch boring bar holders and tool blocks used on conventional and CNC turning centers.
Install and clamp the shank securely in a matched 1/2-inch boring bar holder before starting the spindle. Confirm minimum bore clearance against the 0.49-inch rating before entering the workpiece to avoid tool or workpiece damage. Power down and lock out the machine before making any tool changes or adjustments. Follow the machine manufacturer's recommended overhang guidelines to maintain rigidity and prevent chatter.
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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