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The ACCUPRO ACC-BB140750 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Built from submicron-grade solid carbide with a bright finish, it delivers the rigidity and edge retention needed for tight-tolerance bore work in hardened and abrasive materials. The bar handles a minimum bore diameter of 0.14 inches and a maximum bore depth of 0.75 inches, making it well suited for small, shallow bore applications. The 3/16-inch shank diameter and 2-inch overall length keep the setup compact. Right-hand cutting geometry is standard. Machinists and tool-and-die professionals reach for this bar when bore quality and dimensional consistency are the priority.
The ACC-BB140750 fits typical small-bore turning applications in job shops, production environments, and tool rooms. It is appropriate for boring bores in ferrous and non-ferrous workpieces where a solid carbide tool is specified over a brazed or indexable alternative. The submicron carbide grade supports both finishing and light semi-finishing passes. Right-hand cut orientation suits standard spindle rotation on conventional lathe setups. The compact overall length of 2 inches limits overhang and reduces chatter risk in short-reach applications.
Designed as a direct-fit solid carbide boring bar for tool holders and boring bar blocks accepting a 3/16-inch round shank. Verify minimum bore diameter and maximum depth requirements against your specific workpiece before installation.
Installation is performed by qualified machinists. Power down the machine and engage the spindle lock before mounting or removing any tooling. Secure the shank fully in the holder to the manufacturer-recommended engagement depth to minimize deflection. Inspect the cutting edge for chips or wear before each use, as carbide is brittle and a damaged edge can affect bore quality and dimensional accuracy.
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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