Walter SPMT09T308-F55 WAK15 Tiger-tec Carbide Milling Insert (10 Pcs)
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This is a factory-new box of 10 Walter SPMT09T308-F55 carbide milling inserts in grade WAK15, part of Walter's Tiger-tec® coating platform (EDP 5015845, made in Germany). The SPMT ISO designation decodes as follows: S = square shape (90°), P = 11° clearance angle, M = tolerance class M, T = with hole and top clamp chipbreaker seat, 09T3 = 9.525 mm (3/8 in) inscribed circle / 3.97 mm thickness, 08 = 0.8 mm nose radius, and the F55 chipbreaker is a dedicated milling geometry for cast iron applications. WAK15 is a CVD-coated cemented carbide grade (TiCN + Al₂O₃ Tiger-tec coating) rated ISO K (cast iron) with primary applicability confirmed by the double-dot K rating shown on the label; it targets gray cast iron, nodular cast iron, and compacted graphite iron (CGI) in face and square shoulder milling. The inserts are double-sided (negative basic shape / positive clearance per side), delivering up to 8 usable cutting edges per insert. Compatible toolholders include Walter's F4042, F4047, and F4052 face milling systems designed for SPMT/SPKT seat geometry.
Product Specifications
| Brand | Walter |
| MPN | SPMT09T308-F55 |
| Grade | WAK15 |
| EDP / Walter Part No. | 5015845 |
| Coating Platform | Tiger-tec CVD (TiCN + Al₂O₃) |
| ISO Insert Shape | S – Square |
| ISO Clearance Angle | P – 11° |
| ISO Tolerance Class | M |
| Inscribed Circle (IC) | 9.525 mm (3/8 in) |
| Insert Thickness | 3.97 mm |
| Nose Radius | 0.8 mm |
| Chipbreaker | F55 |
| Number of Cutting Edges | 8 (double-sided) |
| ISO Material Classification | K (cast iron) – primary |
| Applicable Materials | Gray, nodular & compacted graphite iron (CGI) |
| Insert Type | Milling – face & square shoulder |
| Country of Origin | Germany |
| Quantity | 10 pcs per box |
| Condition | New |