ANSI/ISO Conversion Table

Technical Reference Library

Insert Cross-Reference

ANSI / ISO Insert Conversion Table

Cross-reference the ANSI designation for a turning or milling insert against its ISO code, along with inscribed circle (I.C.), thickness, and nose radius. Search by either code below, or browse the full list. See our full insert catalog.

ANSI Code ISO Code I.C. Thickness Nose Radius

Need the right insert for this job?

Now that you have the ANSI/ISO cross-reference, find the exact carbide insert in stock — turning, milling, or drilling, ready to ship.

Reference only — always confirm insert geometry (I.C., thickness, nose radius, chipbreaker, and grade) against the manufacturer's spec sheet before ordering, since ANSI/ISO cross-references can vary slightly between insert brands.

Ready to cut

Once the geometry is settled, the grade and the holder decide how long it lasts. Browse the turning line built for tight tolerances under aggressive feeds.

FM Carbide Turning Inserts → Tool Holders Boring Bars

Not sure which grade matches your material? Use the Grade Look-Up.