30° trapezoidal threading inserts (TR)

Inserts for ISO 30° trapezoidal threads (TR), used on lead screws, vices, presses and power transmissions.

ISO P

ISO M

ISO S

Threading

pitch 1.5 – 6 mm

★ IT5225

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CVD, PVD and cermet for ISO P, M, K, S

Compatible with the insert holders you use

We help you choose grade and chipbreaker

For stock orders throughout Italy

Description

Profile

Range

Profile	30°
Pitch range	pitch 1.5 – 6 mm
Type	External (E) and internal (I), right-hand (R) and left-hand (L)
Insert size	Inscribed circle 6.35 (11), 9.525 (16) and 12.70 mm (22); 3.97 and 4.76 mm for small internal bores
Construction	Sintered with chipbreaker, or precision ground (P) for tight tolerances and finish
Typical application	Lead screws, vices, presses, transmissions and fixtures.

Available INNOT grades

Grade	ISO	Coating	Composition	Application
IT5225 ★	P · M · S	PVD	Multilayer PVD	First-choice grade for threading: steels, stainless steels and superalloys, excellent resistance to profile wear.
IT5125	P · M · S	PVD	Multilayer PVD	Tough grade for threading in unstable conditions and interrupted cuts on steels, stainless steels and superalloys.

★ Recommended grade. On request also CVD grades for steels and cast irons, uncoated carbide for aluminium and cermet for finishing.

Tips for use

Decreasing depth of cut: lighter passes as you approach the thread root.
Flank infeed (modified infeed at 3–5° on the flank) for better chip control and longer insert life.
Choose the shim according to the thread helix angle: flanks that do not rub and a correct profile.

Which insert for your thread?

Tell us the thread (e.g. M20×2.5 external or 1/2″ NPT internal), material and toolholder: we tell you insert and grade with the quote.

Printable cutting data tableAll the data on this page in an INNOT PDF to keep in the shop.Download PDF