Accupro B160250A Boring Bar Submicron Solid Carbide

Product Description

The ACCUPRO B160250A is a solid carbide boring bar designed for internal boring operations on CNC lathes and machining centers. Built from submicron-grade carbide and finished with an AlTiN coating, this bar delivers hardness and thermal resistance suited for tight-tolerance work in steel, cast iron, and hardened materials. The right-hand cut geometry establishes the feed direction and tool orientation at setup. With a 0.16 inch minimum bore diameter and a 3/16 inch shank diameter, this tool targets small-diameter bore finishing where rigidity and runout control are critical. Overall length is 2 inches, keeping overhang minimal and chatter low.

This boring bar is used in precision machining applications where small internal diameters require consistent surface finish and dimensional accuracy. It fits standard 3/16 inch toolholders and is suited for short-run and production work in job shops, tool rooms, and manufacturing cells. Maximum bore depth is 0.25 inches, making it appropriate for shallow bore finishing and through-bore work in thin workpieces. Machinists and CNC operators running small-diameter internal profiles will find this bar well-matched to finishing passes in both manual and automated cycles.

Key Features

• Submicron solid carbide construction for superior wear resistance and edge retention
• AlTiN finish coating improves heat resistance and extends tool life in ferrous materials
• Right-hand cut orientation for standard lathe and boring head setups
• 0.16 inch minimum bore diameter enables work in very small internal features
• 3/16 inch shank diameter fits common small-bore toolholders without adapters
• 2 inch overall length minimizes overhang and reduces chatter risk

Compatibility

Designed as an OEM-style replacement and standard tooling option for 3/16 inch boring bar holders used in CNC lathes, manual lathes, and boring head assemblies requiring right-hand cut small-diameter tooling.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before inserting or removing the boring bar from the toolholder. Secure the shank fully within the holder to the recommended engagement depth and verify runout with a dial indicator before cutting. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when setting tool offsets and initiating the first pass.