

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ACCUPRO B100500R is a corner radius boring bar designed for precision internal machining in small-bore applications. Built from submicron solid carbide with a bright finish, it delivers consistent cutting performance in tight tolerances. The bar features a 0.1 inches minimum bore diameter, a maximum bore depth of 0.5 inches, and a corner radius range of 0.0030 to 0.0050 inches. The right-hand cutting direction and 0.125 inches shank diameter make it compatible with standard toolholders used in CNC turning centers and manual lathes. Machinists and tool-and-die professionals install this bar for finishing passes where corner geometry control is critical.
This boring bar is suited for small-diameter internal turning operations in both production and job-shop environments. The submicron carbide grade provides wear resistance when cutting ferrous and non-ferrous materials. Its compact 1.5 inches overall length allows use in close-clearance setups where standard-length bars would interfere. Applications include finishing bored holes, producing radiused internal corners, and maintaining tight dimensional tolerances in precision components. It is sold individually and is appropriate for light-duty interrupted or continuous cuts within its bore depth rating.
Designed as an OEM-style replacement or direct-fit tooling option for small-bore internal turning applications using 0.125 inches shank toolholders on CNC turning centers and manual lathes.
Installation is performed by qualified machinists or tool-and-die technicians. The machine spindle must be fully stopped and the toolholder secured before inserting or removing the bar. Confirm shank clamping torque against the toolholder manufacturer specification before engaging a cut. Inspect the cutting edge under magnification prior to use to verify no chipping from handling or shipping has occurred.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!