Sumitomo WNMG080412N-GU AC8035P Carbide Turning Insert (10pc)
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This is a new, factory-sealed box of 10 Sumitomo Electric WNMG080412N-GU carbide turning inserts in grade AC8035P, made in Japan. The WNMG ISO designation decodes as: W = trigon (80° included angle) shape, N = 0° clearance (negative rake), M = ±0.08mm inscribed circle/±0.05mm thickness tolerance, G = double-sided with hole and chipbreaker; size 08 = 12.7mm inscribed circle, 04 = 4.76mm thickness, 12 = 1.2mm nose radius; N-GU is Sumitomo's GU medium-cutting chipbreaker geometry. Grade AC8035P is a PVD-coated cemented carbide engineered for stainless steel and difficult-to-cut materials (ISO M material group), featuring Sumitomo's Super FF coating technology for improved wear resistance and crater resistance. The label specifies a cutting speed of 190 m/min (620 SFM) with a recommended feed of 0.3 mm/rev (0.012 IPR) at medium chip load, making these inserts suitable for external turning, facing, and profiling operations on stainless steel and exotic alloys in toolholders accepting WNMG 08 inserts (e.g., DWLNR/L, MWLNR/L style holders).
Product Specifications
| Brand | Sumitomo Electric |
| MPN | WNMG080412N-GU |
| Alternate MPN (inch) | WNMG433EGU |
| Grade | AC8035P |
| Insert Shape | W - Trigon, 80° included angle |
| Clearance Angle | N - 0° (negative rake) |
| Tolerance Class | M (±0.08mm IC, ±0.05mm thickness) |
| Chipbreaker / Type | G - double-sided w/ hole; GU geometry |
| Inscribed Circle (IC) | 12.7 mm (1/2 in) |
| Insert Thickness | 4.76 mm (3/16 in) |
| Nose Radius | 1.2 mm (3/64 in) |
| Coating | PVD (AC8035P Super FF coating) |
| ISO Material Group | M (stainless steel primary) |
| Feed Rate (f) | 0.3 mm/rev (0.012 IPR) |
| Cutting Speed (Vc) | 190 m/min (620 SFM) |
| Cutting Condition | Medium |
| Country of Origin | Japan |
| Quantity | 10 inserts per box |
| Condition | New |