Specification reference · product not verified

TNGA 160412

Triangular · 0° clearance · TNGA series

Inscribed circle · IC9.525 mm
Thickness · S4.76 mm
Corner radius · R1.2 mm

No exact manufacturer product is documented for this specification. Confirm the holder pocket and clamping before choosing a replacement.

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TNGA 160412Nominal geometry
Triangular 0° clearance · A configuration STRUCTURE ONLY
IC 9.525S 4.76R 1.2mm
Cylindrical hole · no 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 ↗

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01 / TOP VIEW IC 9.525 mm Dashed green circle = inscribed circle Dashed gray circles = mounting symbol only 02 / SIDE-NORMAL SECTION S 4.76 mm 0° flank from vertical 03 / CUTTING CORNER · ENLARGED R 1.2 mm · 60°
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 circle9.5250.37505 · ISCAR metric table ↗
Thickness4.760.18746 · ISCAR metric table ↗
Corner radius1.20.04727 · 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.

TNGA 160412 versus TNGA 160408

radius: 0.8 → 1.2 mm. The nominal IC and thickness are unchanged.

Swipe to compare both references →

Nominal code-reference comparison
PropertyTNGA 160412TNGA 160408
FamilyTNGA TNGA
OutlineTriangular Triangular
Corner radius1.2 mm0.8 mm
Inscribed circle9.525 mm9.525 mm
Thickness4.76 mm4.76 mm
Corner angle60 °60 °
Clearance angle0 °0 °
Tolerance symbolG G
Configuration symbolA A
EvidenceCode table; product example not documentedCode table; product example not documented

Where this radius sits

The TNGA 1604 group in this directory has 3 entries, from 0.8 to 1.6 mm radius. This sits between the smallest and largest listed radii.

Confirm the part contour and tool compensation for 1.2 mm. A radius change does not establish surface finish, cutting data or holder compatibility.

Nearby TNGA references

  • TNGA 160408 → — radius: 1.2 → 0.8 mm. The nominal IC and thickness are unchanged.
  • TNGA 160416 → — radius: 1.2 → 1.6 mm. The nominal IC and thickness are unchanged.
  • TNGA 220412 → — IC: 9.525 → 12.7 mm. The nominal seat envelope changes; holder fit must be rechecked.

Product evidence for TNGA 160412

No exact product row is attached to TNGA 160412. The TNGA code and 160412 digits describe nominal geometry; they do not prove that a product is manufactured or available.

Compare the documented evidence within TNGA →

Read shared TNGA 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.

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