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The ISCAR 6403947 is a solid carbide boring bar designed for internal diameter machining in small-bore applications. Built to ISCAR manufacturer grade IC908, this bar features a TiAlN finish coating that improves heat resistance and extends tool life in demanding cutting conditions. With a minimum bore diameter of 0.1181 inches and a maximum bore depth of 0.0236 inches, it is engineered for precision work in tight tolerances. The overall length is 1.1417 inches and the shank diameter is 4.00 millimeters. Right-hand cutting geometry directs cutting forces in the standard orientation for most CNC turning and boring setups. Machinists and tooling specialists working on small-component production or repair operations are the primary users of this tool.
This boring bar is suited for small-bore internal turning operations on CNC lathes and machining centers where access is limited and dimensional accuracy is critical. It is appropriate for both production environments and job shop applications where consistent bore geometry on miniature components is required. The IC908 grade is optimized for a range of workpiece materials including steel alloys and other metals commonly encountered in precision machining. No compatible model list was provided by the manufacturer for this SKU.
Designed as an OEM-style solid carbide boring bar for small-bore internal turning operations on CNC lathes and machining centers requiring a right-hand cut geometry.
Installation of boring bars should be performed by qualified machinists with the machine powered off and in a locked-out, tagged-out state. Verify that the shank diameter matches the toolholder bore before mounting, and ensure the bar is secured with adequate clamping force per the toolholder manufacturer guidelines. Do not exceed the recommended bore depth for this tool, as overextension can cause deflection and dimensional error. Follow applicable shop safety protocols and equipment manufacturer recommendations when setting tool offsets and test cuts.
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.
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