Accupro B360900A Boring Bar 0.36 in Min Bore Solid Carbide

Product Description

The ACCUPRO B360900A is a solid carbide boring bar designed for precision internal diameter machining on CNC lathes and turning centers. Built from submicron-grade carbide and finished with an AlTiN (aluminum titanium nitride) coating, it handles demanding cutting conditions including dry machining and hard materials. The right-hand cutting direction suits standard spindle rotation on most turning setups. With a 0.36-inch minimum bore diameter and 0.9-inch maximum bore depth, this bar targets small-diameter bores where rigidity and tool geometry are critical. Machinists and CNC operators in production and job-shop environments rely on this type of tooling for tight-tolerance bore finishing and semi-finishing operations.

This boring bar is suited for small-bore internal turning on CNC lathes, manual lathes with appropriate toolholding, and multi-axis turning centers. The 3/8-inch shank diameter fits common boring bar holders and quick-change toolpost systems. The 2.5-inch overall length keeps the bar compact, reducing deflection during cuts. Typical applications include finishing bores in ferrous and non-ferrous workpieces where surface finish and dimensional accuracy are required.

Key Features

• Submicron solid carbide construction for superior hardness and wear resistance
• AlTiN coating improves heat resistance and extends tool life in dry or high-speed cutting
• Right-hand cut geometry compatible with standard CNC lathe spindle rotation
• 0.36-inch minimum bore diameter for small internal diameter applications
• 0.9-inch maximum bore depth suitable for shallow to mid-depth bore operations
• 3/8-inch shank diameter fits standard boring bar holders and quick-change systems

Compatibility

Designed as an OEM-style replacement and standard-fit boring bar for toolholders accepting a 3/8-inch shank diameter boring bar in right-hand cut configuration.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the control is in E-stop or lock-out before changing tooling. Secure the shank fully within the boring bar holder to the minimum engagement depth recommended for the holder type to prevent pullout under cutting loads. Verify tool offset and bore diameter with a test pass before running to final dimension.