Insert cross-reference · 90° Square · 0° clearance · 12mm IC · 0.4mm Rε (finishing)

SNMG120404 Cross Reference

Equivalent SNMG120404 inserts across 5 brands — Sandvik, ISCAR, Kennametal, Walter, Tungaloy. Same ISO 1832 geometry class; grades, coatings and application windows differ by manufacturer. Treat equivalents as starting points and verify on a sample part: a cross-reference matches the geometry, not the process.

This is the finishing size of the family: the smaller nose radius lowers cutting force and lets you hold a finer surface finish at light depths of cut, at the cost of a weaker corner.

Brand equivalents — SNMG120404
BrandDesignation / gradeCoatingApplication
Sandvik SNMG120404 GC4325 Inveio® CVD P20–P40
ISCAR SNMG120404 IC8250 SUMO TEC® PVD P20–P35
Kennametal SNMG120404 KC5010 KENGold™ PVD P20–P35
Walter SNMG120404 WPP20S Tiger·tec® Silver P25–P45
Tungaloy SNMG120404 T9115 AH CVD P20–P35

Grades used Sandvik GC4325 · ISCAR IC8250 · Kennametal KC5010 · Walter WPP20S · Tungaloy T9115

ISO designation decoded — what SNMG120404 means
S — shape
square (90°)
N — clearance angle
relief angle 0° (negative insert, double-sided use possible)
M — tolerance
class M — molded, medium tolerance on inscribed circle and corner point (typically ±0.05–0.13 mm depending on size)
G — type
cylindrical fixing hole, chipbreaker on both faces (double-sided insert)
12 — cutting edge length / IC
12 mm nominal (inscribed circle / edge length class)
04 — thickness
insert thickness 4.76 mm
04 — corner radius
Rε = 0.4 mm nose radius
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