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Specification · manufacturer examples available

SCGT 120408

Square · 7° clearance · SCGT series

Inscribed circle · IC12.7 mm
Thickness · S4.76 mm
Corner radius · R0.8 mm
Dimension drawing ↓
Compare with SCGT 120404 →View manufacturer examples ↓

Product grade and application depend on the full manufacturer designation. Confirm the holder pocket and clamping before choosing a replacement.

← Browse SCGT specifications
SCGT 120408Nominal geometry
Square 7° clearance · T configuration STRUCTURE ONLY
IC 12.7S 4.76R 0.8mm
Hole + one-face countersink · 1-face chipbreaker in base type. Outer envelope follows nominal IC, thickness and cutting-corner radius. Dashed circles are mounting symbols, not bore dimensions. Chipbreaker, edge preparation, tip construction and coating are not depicted. This is not a product photograph.

Nominal code dimensions

Dimension referenceCode-table source ↗

Swipe to see the full dimension drawing →

01 / TOP VIEW IC 12.7 mm Dashed green circle = inscribed circle Dashed gray circles = mounting symbol only 02 / SIDE-NORMAL SECTION S 4.76 mm 7° flank from vertical 03 / CUTTING CORNER · ENLARGED R 0.8 mm · 90°
Separate scales for the three views. S is measured between the top and bottom reference planes. The side section shows the outer envelope only. Minor corners, bore/countersink dimensions, chipbreaker and edge preparation require the exact manufacturer drawing.
FieldmminCode-table position
Inscribed circle12.70.50005 · ISCAR metric table ↗
Thickness4.760.18746 · ISCAR metric table ↗
Corner radius0.80.03157 · 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.

SCGT 120408 versus SCGT 120404

radius: 0.4 → 0.8 mm. The nominal IC and thickness are unchanged.

Swipe to compare both references →

Nominal code-reference comparison
PropertySCGT 120408SCGT 120404
FamilySCGT SCGT
OutlineSquare Square
Corner radius0.8 mm0.4 mm
Inscribed circle12.7 mm12.7 mm
Thickness4.76 mm4.76 mm
Corner angle90 °90 °
Clearance angle7 °7 °
Tolerance symbolG G
Configuration symbolT T
EvidenceCode table + 1 catalogue examplesCode table + 1 catalogue examples

Where this radius sits

The SCGT 1204 group in this directory has 5 entries, from 0.4 to 2.4 mm radius. This sits between the smallest and largest listed radii.

Confirm the part contour and tool compensation for 0.8 mm. A radius change does not establish surface finish, cutting data or holder compatibility.

Nearby SCGT references

  • SCGT 120404 → — radius: 0.8 → 0.4 mm. The nominal IC and thickness are unchanged.
  • SCGT 120412 → — radius: 0.8 → 1.2 mm. The nominal IC and thickness are unchanged.
  • SCGT 120416 → — radius: 0.8 → 1.6 mm. The nominal IC and thickness are unchanged.

Product evidence for SCGT 120408

ISCAR / catalogue example

SCGT 120408-AS IC20

IC
12.7 mm
Thickness
4.76 mm
Radius
0.8 mm
Grade
IC20

Read the exact catalogue row ↗

Aluminum Machining, PDF page 23 / printed page 21, 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 SCGT configuration and selection limits →Calculate speed or feed after obtaining cutting data →

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.

See the page-by-page review →