Sumitomo General Catalog 2025-2026

A1 to A37 A

Insert Grades

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Grades for Turning … ………………………………… A2 Grades for Milling ……………………………………… A3 Grade Comparison Chart (CVD / PVD Coated Grades)… ……………………… A4 (Cermet, Cemented Carbide, Ceramic)…………… A6 (CBN, Polycrystalline Diamond) … ………………… A7 Chipbreaker Comparison Chart … ………………… A8 Chipbreaker and Grade Selection Guide For Steel Turning … ……………………………… A10 For Stainless Steel Turning ……………………… A14 For Cast Iron Turning … ………………………… A16 For Exotic Alloy Turning … ……………………… A18 For Hardened Steel Turning … ………………… A20 For Non-Ferrous Metal Turning ………………… A22 For Small Lathes …………………………………… A24 Coated Carbide ……………………………………… A26 Cermet ………………………………………………… A29 Carbide … …………………………………………… A30 CBN …………………………………………………… A32 Polycrystalline Diamond …………………………… A34 Ceramic … …………………………………………… A36 Material Properties … ……………………………… A37

A1

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