Cutting tools / Series index

CNMG insert specifications

80° rhombic · 0° clearance. Cylindrical fixing hole; chipbreakers on both faces in the base type.

3 of 26 listed specifications have manufacturer examples linked from their detail pages.

Filter & compare CNMG sizes →Identify from measurements →

Choose a CNMG specification

Swipe for dimensions and evidence →

Nominal dimensions interpreted from the code table, millimetres
Designation	IC mm	Thickness mm	Radius mm	Evidence
CNMG 060201 →	6.35	2.38	0.1	Specification only · product not verified
CNMG 060202 →	6.35	2.38	0.2	Specification only · product not verified
CNMG 060204 →	6.35	2.38	0.4	Specification only · product not verified
CNMG 060208 →	6.35	2.38	0.8	Specification only · product not verified
CNMG 09T302 →	9.525	3.97	0.2	Specification only · product not verified
CNMG 09T304 →	9.525	3.97	0.4	Specification only · product not verified
CNMG 09T308 →	9.525	3.97	0.8	Specification only · product not verified
CNMG 09T312 →	9.525	3.97	1.2	Specification only · product not verified
CNMG 120404 →	12.7	4.76	0.4	2 manufacturer examples
CNMG 120408 →	12.7	4.76	0.8	2 manufacturer examples
CNMG 120412 →	12.7	4.76	1.2	1 manufacturer examples
CNMG 120416 →	12.7	4.76	1.6	Specification only · product not verified
CNMG 120424 →	12.7	4.76	2.4	Specification only · product not verified
CNMG 160604 →	15.875	6.35	0.4	Specification only · product not verified
CNMG 160608 →	15.875	6.35	0.8	Specification only · product not verified
CNMG 160612 →	15.875	6.35	1.2	Specification only · product not verified
CNMG 160616 →	15.875	6.35	1.6	Specification only · product not verified
CNMG 160624 →	15.875	6.35	2.4	Specification only · product not verified
CNMG 190608 →	19.05	6.35	0.8	Specification only · product not verified
CNMG 190612 →	19.05	6.35	1.2	Specification only · product not verified
CNMG 190616 →	19.05	6.35	1.6	Specification only · product not verified
CNMG 190624 →	19.05	6.35	2.4	Specification only · product not verified
CNMG 250712 →	25.4	7.94	1.2	Specification only · product not verified
CNMG 250716 →	25.4	7.94	1.6	Specification only · product not verified
CNMG 250724 →	25.4	7.94	2.4	Specification only · product not verified
CNMG 250732 →	25.4	7.94	3.2	Specification only · product not verified

Understand CNMG geometry and selection limits

CNMGFamily structure

Cylindrical hole · 2-face chipbreaker in base type. Family proportions are illustrative; choose a specification for dimensions. Dashed circles are mounting symbols, not bore dimensions. Chipbreaker, edge preparation, tip construction and coating are not depicted. This is not a product photograph.

What distinguishes CNMG

Base configuration

Cylindrical fixing hole; chipbreakers on both faces in the base type.

Tolerance symbol M identifies a class. Use the applicable product drawing for acceptance limits.

Check the adjacent family

CCGT → · CCGW → · CCMT → · CNGA → · CNGN → · CNMA → · CNMM → · CPGT → · CPMT →

These families share the outline letter C. Differences in clearance, tolerance and mounting remain relevant even when IC matches.

Choose the comparison that matches your question

This family contains 6 size/thickness groups: 0602, 09T3, 1204, 1606, 1906, 2507. Compare radii within one group first; moving between groups can change the insert-seat envelope.

Shape and clearance do not identify workpiece material, coating, grade or cutting data. Use an exact catalogue example when available; otherwise confirm a maker’s full designation before ordering.

Product evidence in this family

ISCAR / catalogue example

CNMG 120404-GN IC20

IC: 12.7 mm
Thickness: 4.76 mm
Radius: 0.4 mm
Grade: IC20

Read the exact catalogue row ↗

Aluminum Machining, PDF page 9 / printed page 7, exact designation row. Exact geometry row and IC20 availability mark in this catalogue. Cutting conditions require the applicable product data; no stock check.

ISCAR / catalogue example

CNMG 120408-GN IC20

IC: 12.7 mm
Thickness: 4.76 mm
Radius: 0.8 mm
Grade: IC20

Read the exact catalogue row ↗

Find all documented examples in this family →

Source and limits

ISCAR · Metric insert identification ↗ · Single-sheet PDF, sections 1, 2, 4, 5, 6 and 7; visually checked 2026-10-20.

Shape, clearance, configuration and nominal code tables only. No grade, usable-edge count, catalogue availability or acceptance tolerances inferred. Values labeled “code table” are interpretations of a designation, not measurements of a delivered product. Product-row values are reported separately, including differences in printed precision.

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