Accupro ACC-BB4904000 Boring Bar Submicron Solid Carbide

Product Description

The ACCUPRO ACC-BB4904000 is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. Built from submicron-grade carbide with a bright finish coating, it delivers consistent tool life and dimensional accuracy in ferrous and non-ferrous materials. The right-hand cutting geometry suits standard spindle rotation setups. With a 0.49-inch minimum bore diameter, 4-inch maximum bore depth, 0.5-inch shank diameter, and 6-inch overall length, this bar fits a wide range of production and job-shop boring applications where rigidity and finish quality are priorities.

This boring bar is suited for machining shops handling close-tolerance bores in production runs or prototype work. The submicron carbide grade performs well in interrupted cuts and hard materials where conventional carbide grades wear prematurely. The 0.5-inch shank diameter is compatible with standard boring bar holders and quick-change tooling systems commonly found on engine lathes, turret lathes, and CNC turning centers. Machinists and toolroom operators working on through-bores and blind-bore applications will find the 4-inch depth capacity covers the majority of common workpiece lengths.

Key Features

• Submicron solid carbide construction for extended tool life in demanding cuts
• Bright finish coating reduces built-up edge and aids chip flow
• Right-hand cutting direction for standard lathe spindle rotation
• 0.49-inch minimum bore diameter accommodates small-diameter internal work
• 4-inch maximum bore depth suitable for a broad range of workpiece sizes
• 0.5-inch shank diameter fits standard boring bar holders and quick-change systems

Compatibility

Designed as an OEM-style replacement and standard fitment boring bar for 0.5-inch boring bar holder systems used on CNC and manual turning equipment.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and all power is isolated before mounting or removing tooling. Secure the shank firmly in the boring bar holder to the holder manufacturer's specified clamping procedure to prevent chatter and tool pullout. Verify overhang does not exceed recommended length-to-diameter ratios for the material being bored to maintain surface finish and dimensional tolerance.