Specification · manufacturer examples available
80° rhombic · 0° clearance · CNMG series
Product grade and application depend on the full manufacturer designation. Confirm the holder pocket and clamping before choosing a replacement.
← Browse CNMG specificationsSwipe to see the full dimension drawing →
| Field | mm | in | Code-table position |
|---|---|---|---|
| Inscribed circle | 12.7 | 0.5000 | 5 · ISCAR metric table ↗ |
| Thickness | 4.76 | 0.1874 | 6 · ISCAR metric table ↗ |
| Corner radius | 0.4 | 0.0157 | 7 · ISCAR metric table ↗ |
The inch column is mm ÷ 25.4, rounded to four decimal places. This is not an ANSI designation conversion. Product tolerances and clamping dimensions are not inferred.
radius: 0.8 → 0.4 mm. The nominal IC and thickness are unchanged.
Swipe to compare both references →
| Property | CNMG 120404 | CNMG 120408 |
|---|---|---|
| Family | CNMG | CNMG |
| Outline | 80° rhombic | 80° rhombic |
| Corner radius | 0.4 mm | 0.8 mm |
| Inscribed circle | 12.7 mm | 12.7 mm |
| Thickness | 4.76 mm | 4.76 mm |
| Corner angle | 80 ° | 80 ° |
| Clearance angle | 0 ° | 0 ° |
| Tolerance symbol | M | M |
| Configuration symbol | G | G |
| Evidence | Code table + 2 catalogue examples | Code table + 2 catalogue examples |
The CNMG 1204 group in this directory has 5 entries, from 0.4 to 2.4 mm radius. This is the smallest listed radius in that group.
Confirm the part contour and tool compensation for 0.4 mm. A radius change does not establish surface finish, cutting data or holder compatibility.
ISCAR / catalogue example
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
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.
Read shared CNMG configuration and selection limits →Calculate speed or feed after obtaining cutting data →
Tungaloy · catalogue-combination
steel, stainless, castiron / external, internal / finish
Check this complete product and its conditions →
Tungaloy T9200 application tables ↗ · Applications and standard cutting conditions: TSF/PSF finishing, TM medium, TH medium/heavy.
Tungaloy metric catalogue 513 ↗ · Printed page 12; exact product row and grade/geometry application matrix.
Interrupted-cut evidence is limited to light interruption. Heavy interruption is not established by this record. External/internal operation scope is documented at family level; confirm the actual holder, access and cutting direction. Application evidence is attached to this full product, not every insert sharing the base code.
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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