TPEH Turning Inserts

This is our TPEH range: 9 sizes, 32 variants, Achteck. The geometry is a triangular 60° shape giving six cutting edges — the lowest cost per edge, at the price of a weaker tip. Applications published for the family cover Steel.

Sizes in this family

Every TPEH size we carry, with the measured geometry and how many variants are in stock. Open a size for the full cutting data and grade list.

Grades stocked in this family

AT210A, AT210.

The family is published for Steel. Pick the grade from the group you are cutting — how to read grade names.

Chipbreaker geometries

F. The chipbreaker defines the feed window — chipbreaker selection guide.

Typical operations

• Finishing

Which size do you need?

• Inscribed circle sets the maximum depth of cut. As a rule keep ap under about two thirds of the IC.
• Nose radius trades finish against strength. A larger radius gives better surface finish at the same feed and a stronger edge, but raises cutting force and cannot produce tight internal corners.
• Check the holder. The holder designation must carry the same shape letter and the same size digit as the insert.

Related

• All Turning Inserts
• Turning insert selection guide
• Decode the designation
• Cutting speed / feed calculator