Kennametal ThreadingKennametal Threading

Kennametal threading inserts and toolholders

Top Notch and laydown threading systems

Browse Kennametal Top Notch NT partial-profile inserts, LT 60° partial-profile inserts, and LT UN and ISO full-profile inserts alongside external holders, internal bars and listed replacement parts.

Choose the thread profile and pitch

Match the required thread form and pitch before choosing the insert. Compare external and internal pitch ranges separately. A partial-profile insert and a full-profile insert serve different thread requirements; select by the complete catalog designation and grade.

Match the holder to the exact insert

Check insert size, seat, hand and holder designation. Top Notch and laydown systems use different interfaces. Use the compatible-item links for the selected configuration rather than assuming all products in this collection fit together.

Build a serviceable threading setup

Compare holder shank dimensions, internal-bore clearance and working lengths with your machine and part. Listed clamps, screws, shims and keys are matched to specific holder articles. Consult the linked technical document for the selected system.

Which grade should I choose?

Use the workpiece-material suitability shown for the exact insert grade. A grade listed for one configuration does not establish suitability for every insert in the family.

Can I request inserts and a holder together?

Yes. Add the selected holder, its compatible insert configurations and required service parts to Quote with separate quantities. Include the thread standard, pitch, workpiece material and internal or external operation.