Kennametal LT Threading Inserts

LT - Laydown Triangle Threading

Primary Application

LT Laydown triangle threading is the system of choice for fine-pitch threads, high-helix/multistart threads, and single-point threading in small-diameter bores. With a wide selection of CB-style chip control inserts, you will receive superior chip management for excellent surface finishes and minimal operator intervention. The low-profile design enables unrestricted chip flow — ideal for I.D. threads, and variable shim angles enable proper cutting geometry for high-helix angle and reverse helix angle threading, maximising tool life and improving thread quality.

Together, these tools give industry-leading flexibility in choosing the right tool for the job.

Features and Benefits

Precision-Ground Thread Form on LT and LT-CB

Minimises built-up edge.
Precisely cuts most common materials.
Reduces cutting forces.
Ensures accurate, high-quality threads.

KC5010™ and KC5025™ Premium PVD TiAlN-Coated Grades

Increase tool life at existing machining conditions.
Increase productivity by outperforming conventional PVD grades
with up to a 30% advantage in cutting speeds.

Superior Chip Control

Eliminates long, troublesome coils.
Excellent for internal threading operations.
Available in both partial and full profile inserts for all common thread forms.

Kenna Universal™ Inserts

Precision moulded LT-K thread form provides outstanding utility and value.
Excellent chip control combined with the new KU25T™ grade
enables trouble-free threading on a variety of workpiece materials.

Click through to the products to find their related matching tools.

LT-NR-API

Product Code	Pitch/TPI
LT27NR5API403 KC5025 »	5.00
LT27NR4API503 KC5025 »	4.00
LT27NR4API502 KC5025 »	4.00
LT27NR4API383 KC5025 »	4.00
LT27NR4API382 KC5025 »	4.00
LT22NR5API403 KC5025 »	5.00
LT22NR4API502 KC5025 »	4.00
LT22NR4API382 KC5025 »	4.00

LT-NR-STACME

Product Code	Pitch/TPI
LT27NR4STACME KC5025 »	4.00
LT22NR6STACME KC5025 »	6.00
LT16NR8STACME KC5025 »	8.00
LT16NR6STACME KC5025 »	6.00
LT16NR16STACME KC5025 »	16.00
LT16NR14STACME KC5025 »	14.00
LT16NR12STACME KC5025 »	12.00
LT16NR10STACME KC5025 »	10.00

LT-ER-API

Product Code	Pitch/TPI
LT27ER5API403 KC5025 »	5.00
LT27ER4API503 KC5025 »	4.00
LT27ER4API502 KC5025 »	4.00
LT27ER4API383 KC5025 »	4.00
LT27ER4API382 KC5025 »	4.00
LT22ER5API403 KC5010 »	5.00
LT22ER4API503 KC5010 »	4.00
LT22ER4API502 KC5025 »	4.00
LT22ER4API502 KC5010 »	4.00
LT22ER4API382 KC5025 »	4.00

LT-ER-STACME

Product Code	Pitch/TPI
LT27ER4STACME KC5025 »	4.00
LT22ER5STACME KC5025 »	5.00
LT16ER8STACME KC730 »	8.00
LT16ER8STACME KC5025 »	8.00
LT16ER6STACME KC5025 »	6.00
LT16ER16STACME KC5025 »	16.00

LT-NR-55

Product Code	Pitch/TPI
LT22NRN55 KC5025 »	55.00
LT16NRG55 KC5025 »	55.00
LT16NRAG55 KC5025 »	55.00
LT16NRA55 KC5025 »	55.00

LT-NR-W

Product Code	Pitch/TPI
LT22NR7W KC5025 »	7.00
LT22NR6W KC5025 »	6.00
LT16NR8W KC5025 »	8.00
LT16NR20W KC5025 »	20.00
LT16NR19W KC5025 »	19.00
LT16NR16W KC5025 »	16.00
LT16NR14W KC5025 »	14.00
LT16NR12W KC5025 »	12.00
LT16NR11W KC5025 »	11.00
LT16NR11W KC5010 »	11.00
LT16NR10W KC5025 »	10.00

LT-NR-RD

Product Code	Pitch/TPI
LT22NR6RD KC5025 »	6.00
LT16NR8RD KC5025 »	8.00

LT-NR-ACME

Product Code	Pitch/TPI
LT22NR6ACME KC5025 »	6.00
LT22NR5ACME KC5025 »	5.00
LT16NR8ACME KC5025 »	8.00
LT16NR12ACME KC5025 »	12.00
LT16NR10ACME KC5025 »	10.00

LT-NR-TR

Product Code	Pitch/TPI
LT22NR5TR KC5025 »	5.00
LT22NR4TR KC5025 »	4.00
LT16NR3TR KC5025 »	3.00
LT16NR2TR KC5025 »	2.00

LT-NR-BUT

Product Code	Pitch/TPI
LT22NR5BUT75 KC5025 »	5.00
LT22NR5BUT1 KC5025 »	5.00

LT-NR-ISO

Product Code	Pitch/TPI
LT22NR50ISO KC5025 »	5.00
LT22NR45ISO KC5025 »	4.50
LT22NR40ISO KC730 »	4.00
LT22NR40ISO KC5025 »	4.00
LT22NR35ISO KC5025 »	3.50
LT16NR30ISO KC730 »	3.00
LT16NR30ISO KC5025 »	3.00
LT16NR30ISO KC5010 »	3.00
LT16NR25ISO KC730 »	2.50
LT16NR25ISO KC5025 »	2.50
LT16NR20ISO KC730 »	2.00
LT16NR20ISO KC5025 »	2.00
LT16NR20ISO KC5010 »	2.00
LT16NR175ISO KC5025 »	1.75
LT16NR15ISO KC730 »	1.50
LT16NR15ISO KC5025 »	1.50
LT16NR15ISO KC5010 »	1.50
LT16NR125ISO KC5025 »	2.50
LT16NR10ISO KC5025 »	1.00
LT16NR10ISO KC5010 »	1.00
LT16NR075ISO KC5025 »	0.75
LT16NR05ISO KC5025 »	0.50

LT-NL-ISO

Product Code	Pitch/TPI
LT22NL40ISO KC5025 »	4.00
LT16NL30ISO KC5025 »	3.00
LT16NL25ISO KC5025 »	2.50
LT16NL20ISO KC5025 »	2.00
LT16NL15ISO KC5025 »	1.50
LT16NL10ISO KC5025 »	1.00

LT-ER-55

Product Code	Pitch/TPI
LT22ERN55 KC5025 »	55.00
LT16ERG55 KC5025 »	55.00
LT16ERAG55 KC5025 »	55.00
LT16ERAG55 KC5010 »	55.00
LT16ERA55 KC5025 »	55.00

LT-ER-W

Product Code	Pitch/TPI
LT22ER7W KC5025 »	7.00
LT22ER6W KC5025 »	6.00
LT16ER9W KC5025 »	9.00
LT16ER8W KC5025 »	8.00
LT16ER28W KC5025 »	28.00
LT16ER24W KC5025 »	24.00
LT16ER20W KC5025 »	20.00
LT16ER19W KC5025 »	19.00
LT16ER19W KC5010 »	19.00
LT16ER18W KC5025 »	18.00
LT16ER16W KC5025 »	16.00

LT-ER-RD

Product Code	Pitch/TPI
LT22ER6RD KC5025 »	6.00
LT16ER8RD KC5025 »	8.00

LT-ER-ACME

Product Code	Pitch/TPI
LT22ER6ACME KC5025 »	6.00
LT22ER5ACME KC5025 »	5.00
LT16ER8ACME KC5025 »	8.00
LT16ER16ACME KC5025 »	16.00

LT-ER-TR

Product Code	Pitch/TPI
LT22ER5TR KC5025 »	5.00
LT22ER4TR KC5025 »	4.00
LT16ER3TR KC5025 »	3.00
LT16ER2TR KC5025 »	2.00

LT-ER-BUT

Product Code	Pitch/TPI
LT22ER5BUT75 KC5025 »	5.00

LT-ER-ISO

Product Code	Pitch/TPI
LT22ER50ISO KC730 »	5.00
LT22ER50ISO KC5025 »	5.00
LT22ER45ISO KC730 »	4.50
LT22ER45ISO KC5025 »	4.50
LT22ER40ISO KC730 »	4.00
LT22ER40ISO KC5025 »	4.00
LT22ER35ISO KC5025 »	3.50
LT16ER30ISO KC730 »	3.00
LT16ER30ISO KC5025 »	3.00
LT16ER30ISO KC5010 »	3.00
LT16ER25ISO KC730 »	2.50
LT16ER25ISO KC5025 »	2.50
LT16ER25ISO KC5010 »	2.50
LT16ER20ISO KC730 »	2.00
LT16ER20ISO KC5025 »	2.00
LT16ER20ISO KC5010 »	2.00
LT16ER175ISO KC5025 »	1.75
LT16ER175ISO KC5010 »	1.75

LT-EL-ISO

Product Code	Pitch/TPI
LT22EL35ISO KC5025 »	3.50

LT-NR-UN

Product Code	Pitch/TPI
LT16NR8UN KC730 »	8.00
LT16NR8UN KC5025 »	8.00
LT16NR32UN KC5025 »	32.00
LT16NR28UN KC5025 »	28.00
LT16NR24UN KC5025 »	24.00
LT16NR20UN KC730 »	20.00
LT16NR20UN KC5025 »	20.00
LT16NR18UN KC730 »	18.00
LT16NR18UN KC5025 »	18.00
LT16NR16UN KC730 »	16.00
LT16NR16UN KC5025 »	16.00
LT16NR14UN KC730 »	14.00
LT16NR14UN KC5025 »	14.00
LT16NR12UN KC730 »	12.00
LT16NR12UN KC5025 »	12.00
LT16NR12UN KC5010 »	12.00
LT16NR10UN KC5025 »	10.00

LT-NR-NPT

Product Code	Pitch/TPI
LT16NR8NPT KC5025 »	8.00
LT16NR14NPT KC5025 »	14.00
LT16NR115NPT KC730 »	11.00
LT16NR115NPT KC5025 »	11.00
LT16NR115NPT KC5010 »	11.00

LT-NR-APIRD

Product Code	Pitch/TPI
LT16NR8APIRD KC5025 »	8.00
LT16NR10APIRD KC5025 »	10.00

LT-NR-ISOK

Product Code	Pitch/TPI
LT16NR30ISOK KU25T »	3.00
LT16NR25ISOCB KC5025 »	2.50
LT16NR20ISOK KU25T »	2.00
LT16NR20ISOCB KC5025 »	2.00
LT16NR15ISOK KU25T »	1.50
LT16NR15ISOCB KC5025 »	1.50
LT16NR10ISOCB KC5025 »	1.00

LT-NR-UNJ

Product Code	Pitch/TPI
LT16NR16UNJ KC5025 »	16.00
LT16NR12UNJ KC5025 »	12.00

LT-NR-WCB

Product Code	Pitch/TPI
LT16NR14WCB KC5025 »	14.00
LT16NR11WCB KC5025 »	11.00

LT-NR-NPTF

Product Code	Pitch/TPI
LT16NR14NPTF KC5025 »	14.00
LT16NR115NPTF KC5025 »	11.00

LT-NR-NPTCB

Product Code	Pitch/TPI
LT16NR14NPTCB KC5025 »	14.00
LT16NR115NPTCB KC5025 »	11.00

LT-NR-BSPT

Product Code	Pitch/TPI
LT16NR14BSPT KC5025 »	14.00
LT16NR11BSPT KC5025 »	11.00

LT-NL-UN

Product Code	Pitch/TPI
LT16NL8UN KC5025 »	8.00
LT16NL16UN KC5025 »	16.00
LT16NL12UN KC5025 »	12.00
LT16NL10UN KC5025 »	10.00

LT-NL-ACME

Product Code	Pitch/TPI
LT16NL8ACME KC5025 »	8.00
LT16NL10ACME KC5025 »	10.00

LT-NL-W

Product Code	Pitch/TPI
LT16NL11W KC5025 »	11.00

LT-NR-UNCB

Product Code	Pitch/TPI
LT16ER8UNCB KC5025 »	8.00
LT16ER8UNCB KC5010 »	8.00
LT16ER32UNCB KC5025 »	32.00
LT16ER32UNCB KC5010 »	32.00
LT16ER28UNCB KC5025 »	28.00
LT16ER28UNCB KC5010 »	28.00
LT16ER24UNCB KC5025 »	24.00
LT16ER24UNCB KC5010 »	24.00
LT16ER20UNCB KC5025 »	20.00
LT16ER20UNCB KC5010 »	20.00
LT16ER18UNCB KC5025 »	18.00
LT16ER18UNCB KC5010 »	18.00
LT16ER16UNCB KC5025 »	16.00
LT16ER16UNCB KC5010 »	16.00

LT-ER-UN

Product Code	Pitch/TPI
LT16ER8UN KC730 »	8.00
LT16ER8UN KC5025 »	8.00
LT16ER48UN KC5025 »	4.00
LT16ER40UN KC5025 »	4.00
LT16ER36UN KC5025 »	36.00
LT16ER32UN KC5025 »	32.00
LT16ER32UN KC5010 »	32.00
LT16ER28UN KC5025 »	28.00
LT16ER28UN KC5010 »	28.00
LT16ER24UN KC5025 »	24.00
LT16ER24UN KC5010 »	24.00
LT16ER20UN KC730 »	20.00
LT16ER20UN KC5025 »	20.00
LT16ER20UN KC5010 »	20.00
LT16ER18UN KC730 »	18.00
LT16ER18UN KC5025 »	18.00
LT16ER18UN KC5010 »	18.00
LT16ER16UN KC730 »	16.00
LT16ER16UN KC5025 »	16.00
LT16ER16UN KC5010 »	16.00

LT-ER-NPT

Product Code	Pitch/TPI
LT16ER8NPT KC5025 »	8.00
LT16ER27NPT KC5025 »	27.00
LT16ER18NPT KC730 »	18.00
LT16ER18NPT KC5025 »	18.00
LT16ER18NPT KC5010 »	18.00

LT-ER-APIRD

Product Code	Pitch/TPI
LT16ER8APIRD KC5025 »	8.00

LT-ER-UNJ

Product Code	Pitch/TPI
LT16ER32UNJ KC5025 »	32.00
LT16ER28UNJ KC5025 »	28.00
LT16ER24UNJ KC5025 »	24.00
LT16ER20UNJ KC5025 »	20.00
LT16ER20UNJ KC5010 »	20.00
LT16ER18UNJ KC5025 »	18.00
LT16ER18UNJ KC5010 »	18.00
LT16ER16UNJ KC730 »	16.00
LT16ER16UNJ KC5025 »	16.00
LT16ER16UNJ KC5010 »	16.00

LT-ERISOK

Product Code	Pitch/TPI
LT16ER30ISOK KU25T »	3.00
LT16ER25ISOK KU25T »	2.50
LT16ER20ISOK KU25T »	2.00
LT16ER175ISOK KU25T »	1.75
LT16ER15ISOK KU25T »	1.50

LT-ER-ISOCB

Product Code	Pitch/TPI
LT16ER30ISOCB KC5025 »	3.00
LT16ER30ISOCB KC5010 »	3.00
LT16ER25ISOCB KC5025 »	2.50
LT16ER20ISOCB KC5025 »	2.00
LT16ER20ISOCB KC5010 »	2.00
LT16ER175ISOCB KC5025 »	1.75
LT16ER175ISOCB KC5010 »	1.75
LT16ER15ISOCB KC5025 »	1.50
LT16ER15ISOCB KC5010 »	1.50

LT-NR-UNK

Product Code	Pitch/TPI
LT16ER24UNK KU25T »	24.00
LT16ER20UNK KU25T »	20.00
LT16ER18UNK KU25T »	18.00
LT16ER16UNK KU25T »	16.00