Insert cross-reference · Round · 7° clearance · 12mm diameter · 4.76mm thick

RCMT1204 Cross Reference

Equivalent RCMT1204 inserts across 7 brands — Sandvik, ISCAR, Kennametal, Walter, Tungaloy, Seco, Mitsubishi. 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.

Brand equivalents — RCMT1204
BrandDesignation / gradeCoatingApplication
Sandvik RCMT 12 04 M0 GC2220 PVD TiAlN S05–S20
ISCAR RCMT 120400 IC806 SUMO TEC® PVD S10–S25
Kennametal RCMT 120400 KCU25 PVD TiAlN S05–S20
Walter RCMT 12 04 M0 WSM45X PVD TiAlN S10–S20
Tungaloy RCMT120400 T9125 AH TiAlN PVD S10–S25
Seco RCMT 12 04 M0 S205F PVD TiAlN Duratomic® S05–S20
Mitsubishi RCMT 120400 US7020 PVD TiAlN nano-multilayer S10–S25

Grades used Sandvik GC2220 · ISCAR IC806 · Kennametal KCU25 · Walter WSM45X · Tungaloy T9125 · Seco S205F · Mitsubishi US7020

ISO designation decoded — what RCMT1204 means
R — shape
round
C — clearance angle
relief angle 7°
M — tolerance
class M — molded, medium tolerance on inscribed circle and corner point (typically ±0.05–0.13 mm depending on size)
T — type
fixing hole with countersink, chipbreaker on one face (single-sided positive insert)
12 — diameter
12 mm insert diameter
04 — thickness
insert thickness 4.76 mm
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