Insert cross-reference · 90° Square · 0° clearance · 12mm IC · 1.2mm Rε (roughing)

SNMG120412 Cross Reference

Equivalent SNMG120412 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 roughing size of the family: the larger nose radius gives a stronger corner for heavier depths of cut and interrupted work, but raises radial force and the tendency to chatter on slender parts.

Brand equivalents — SNMG120412
BrandDesignation / gradeCoatingApplication
Sandvik SNMG120412 GC4325 Inveio® CVD P20–P40
ISCAR SNMG120412 IC8250 SUMO TEC® PVD P20–P35
Kennametal SNMG120412 KC5010 KENGold™ PVD P20–P35
Walter SNMG120412 WPP20S Tiger·tec® Silver P25–P45
Tungaloy SNMG120412 T9115 AH CVD P20–P35

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

ISO designation decoded — what SNMG120412 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
12 — corner radius
Rε = 1.2 mm nose radius
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