InsertBase

25.4 × 9.52 × 2.4 mm inserts

Indexable turning inserts whose three key dimensions coincide: inscribed circle d1 = 25.4 mm (1 in), thickness s = 9.52 mm (0.375 in), nose radius rε = 2.4 mm (0.094 in). This is the dimension set behind an “equivalent insert” search — read the interchange note before substituting.

2 designations across 2 insert shapes (C, S) share these dimensions. Equal d1, s and rε alone do not make inserts interchangeable: shape and clearance must match too — a 60° triangular insert and a 55° rhombic insert at the same dimensions cut completely different profiles and seat in different holders. Rows below are grouped by shape; true geometric interchange applies within the same ISO core code across brands, as shown on each model page.

Models at this dimension set

ModelShapeClearanceTolerance / fixingBrand offers
CNMM250924 C 80° rhombic N · 0° MM 29 Specs →
SNMM250924 S 90° square N · 0° MM 30 Specs →

Every value on this page is derived deterministically from the ISO 1832 designation (positions 1–7). Brand ordering codes, chipbreakers and grades with cited sources appear on each linked model page.