SUMITOMOSquare (S) Indexable Turning Inserts
SUMITOMO Square Turning Insert: SPMN421
The SUMITOMO Square Turning Insert, model SPMN421 (also referenced as SPMN120304, MPN SPMN421-AC420K), is a square (S) indexable turning insert. Key specifications include the SPMN421 and SPMN120304 designations.
SKU 3G-OTH-229230
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SUMITOMO Products
3G Electric (S) Pte. Ltd. — Singapore
Product Description
The SUMITOMO Square Turning Insert, model SPMN421 (also referenced as SPMN120304, MPN SPMN421-AC420K), is a square (S) indexable turning insert. Key specifications include the SPMN421 and SPMN120304 designations.
Used in
Common applications for SUMITOMOAutomotive engine block machining — Sumitomo SNMG square turning inserts for facing and boring cast iron
Aerospace component turning — Sumitomo DNMG diamond inserts with UP chipbreaker for finishing titanium alloys
Oil and gas valve production — Sumitomo TPMR triangle inserts with T1500Z grade for threading stainless steel
General engineering shaft turning — Sumitomo CNMG diamond inserts with LU chipbreaker for medium interrupted cuts
Mold and die finishing — Sumitomo VNMG diamond inserts with UZ chipbreaker for hardened steel profiling
Heavy equipment repair — Sumitomo TCMT triangle inserts with AC810P grade for turning wear-resistant steels
SUMITOMO Products
3G Electric supplies SUMITOMO square (s) indexable turning inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
