Accupro ACC-BB4902750G Boring Bar 0.49 in Solid Carbide Tin

Product Description

The ACCUPRO ACC-BB4902750G is a solid carbide boring bar designed for precision internal turning and bore finishing on CNC lathes and manual turning centers. Built from micrograin solid carbide with a titanium nitride (TiN) coating, it delivers consistent cutting performance and extended tool life in ferrous and non-ferrous materials. The right-hand cutting orientation suits standard lathe setups. With a 0.49-inch minimum bore diameter and a maximum bore depth of 2.75 inches, this bar handles tight-tolerance blind and through-bore applications where rigidity and surface finish matter. The 0.5-inch shank diameter fits common tool holders without modification.

This boring bar is suited for production and job-shop machining environments where close-tolerance bore work is required. Machinists and tooling technicians use it on CNC turning centers and manual lathes for finishing passes, light roughing, and bore sizing in steel, cast iron, aluminum, and similar workpiece materials. The 4-inch overall length provides adequate reach while maintaining the rigidity that micrograin carbide offers over standard carbide grades. It is a single-piece, solid-shank tool - no insert changeover required.

Key Features

• Micrograin solid carbide construction for increased hardness and wear resistance compared to standard carbide grades
• TiN finish coating reduces friction and extends cutting edge life
• 0.49-inch minimum bore diameter supports small-bore applications
• 2.75-inch maximum bore depth allows reach into deep bores without tool change
• Right-hand cutting direction compatible with standard lathe spindle rotation
• 0.5-inch shank diameter fits widely available tool holders and boring bar holders

Compatibility

Designed as a direct-fit replacement for 0.5-inch shank boring bars used on CNC and manual turning centers requiring a right-hand, solid carbide boring tool with a 0.49-inch minimum bore diameter.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before securing or adjusting the boring bar in the tool holder. Ensure the shank is clamped to the full recommended engagement depth per the machine tool manufacturer guidance to minimize deflection. Inspect the cutting edge for chips or wear before each use - a damaged carbide edge should not be reground without proper carbide grinding equipment.