Walter CNMG120412-MP5 WPP10S Tiger-tec Silver Carbide Turning Insert
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The Walter CNMG120412-MP5 WPP10S is a new, factory-fresh indexable carbide turning insert in Tiger-tec Silver grade WPP10S, designed for steel turning (ISO P) with secondary applicability in cast iron (ISO K). Decoding the ISO designation: C = 80° rhombic shape, N = 0° clearance angle, M = M-tolerance, G = with hole and chipbreaker, 12 = 12.7 mm inscribed circle, 04 = 4.76 mm thickness, 12 = 1.2 mm nose radius, MP5 = Walter's medium positive chipbreaker geometry optimized for medium-depth finishing to medium roughing passes. The Tiger-tec Silver WPP10S grade features a CVD-coated Al₂O₃/MT-TiCN multilayer coating on a tough carbide substrate, delivering the recommended cutting speed range of 200–360 m/min (670–1180 sfm) for steel and 260–600 m/min (860–1960 sfm) for cast iron, with depth of cut ap 1.0–5.0 mm and feed f 0.20–0.45 mm/rev. These inserts are compatible with CNMG-style negative toolholders (PCLNR/L, MCLNR/L, DCLNR/L, etc.) and are sold in a standard 10-piece tray pack (EDP 6067218). Made in Germany.
Product Specifications
| Brand | Walter |
| MPN | CNMG120412-MP5 WPP10S |
| ISO Equivalent | CNMG433-MP5 |
| EDP Number | 6067218 |
| Grade | WPP10S (Tiger-tec Silver) |
| Insert Shape | C – 80° Rhombic |
| Clearance Angle | N – 0° (Negative) |
| Tolerance Class | M |
| Chipbreaker | MP5 (Medium Positive, mid-finish to rough) |
| Inscribed Circle (IC) | 12.7 mm (1/2 in) |
| Thickness | 4.76 mm (3/16 in) |
| Nose Radius | 1.2 mm |
| Coating | CVD Al₂O₃/MT-TiCN multilayer |
| ISO Material Groups | P (Steel), K (Cast Iron) |
| Cutting Speed – Steel (P) | 200–360 m/min (670–1180 sfm) |
| Cutting Speed – Cast Iron (K) | 260–600 m/min (860–1960 sfm) |
| Depth of Cut (ap) | 1.0–5.0 mm (0.039–0.197 in) |
| Feed Rate (f) | 0.20–0.45 mm/rev (0.008–0.018 in/rev) |
| Country of Origin | Germany |
| Quantity per Pack | 10 inserts |
| Hole / Fixing | G – Central hole with chipbreaker |
