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The MICRO 100 BB-2301250 is a solid carbide boring bar designed for internal diameter machining on lathes and boring mills. It handles a minimum bore diameter of 0.23 inches and a maximum bore depth of 1.25 inches, making it well suited for small, precise bores in a range of workpiece materials. The right-hand cutting direction suits standard spindle rotation. With a 5/16-inch shank diameter and an overall length of 2.5 inches, this bar fits common tool holders and boring head setups used in production and job-shop environments. Licensed machinists and toolroom technicians are the primary installers and operators.
This boring bar is used in CNC and manual turning centers, boring mills, and milling machines wherever small-bore internal finishing or roughing is required. The compact geometry makes it appropriate for shallow bores in both ferrous and non-ferrous workpieces. It is a single-piece solid carbide construction, which provides rigidity and vibration resistance at small bore diameters where inserted-tip tooling is typically not practical.
Designed as an OEM-style solid carbide boring bar for use in tool holders accepting a 5/16-inch shank diameter on CNC or manual turning and boring equipment.
Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the spindle before securing or removing the boring bar from its holder. Ensure the shank is properly seated and clamped to the specified holder torque per machine documentation. Inspect the cutting edge for chips or wear before each use, as solid carbide tools can fracture if run in damaged condition.
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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