

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 ISCAR 6403813 is a solid carbide boring bar designed for internal diameter boring operations on CNC lathes and turning centers. It features a 4 mm shank diameter and a 34 mm overall length, making it suited for small-bore applications with a minimum bore diameter of 0.1575 inches (4.00 mm) and a maximum bore depth of 0.748 inches (19.00 mm). The cutting geometry is right-hand orientation. A TiAlN finish coating improves wear resistance and thermal stability, extending tool life in demanding cutting conditions. This tooling is installed and used by machinists and CNC operators in precision metalworking environments.
This boring bar is intended for small-bore internal turning applications on ferrous and non-ferrous workpieces. Its compact shank and short overall length make it appropriate for tight-bore work where clearance is limited. The IC908 manufacturer grade designation indicates a coated carbide substrate suited for a range of turning applications including steel, stainless steel, and cast iron at moderate to high cutting speeds. This tool is typically used in production turning and job-shop environments requiring consistent bore geometry and surface finish.
Designed as an OEM-style replacement boring bar for use in tool holders accepting a 4 mm round shank, compatible with CNC lathes and turning centers configured for small-bore internal turning operations.
Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the machine is locked out before changing tooling. Secure the shank firmly in the tool holder to the specified clamping requirements of the holder manufacturer to minimize runout and deflection. Verify bore diameter and depth settings with appropriate gauging before running production parts.
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!