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The designation system is a standardized alphanumeric code used to identify the geometric and physical characteristics of indexable turning inserts. This "license plate" for inserts ensures that tools from different manufacturers (like Sandvik Coromant , Seco Tools , or Kennametal) are interchangeable and clearly specified.
(Hole + Chipbreaker), W (Hole + Double-sided chipbreaker), A (Hole, no chipbreaker). 5. Size Length of the cutting edge. Represented in mm (Metric) or 1/8" increments (ANSI/Inch). 6. Thickness Vertical depth of the insert. 04 (4.76 mm), 03 (3.18 mm), 06 (6.35 mm). 7. Radius Nose radius for surface finish. 04 (0.4 mm), 08 (0.8 mm), 12 (1.2 mm). Extended Parameters (Positions 8–13) ISO designation for Inserts - Seco Tools The designation system is a standardized alphanumeric code
(Standard/Medium), G (Ground/High Precision), E (Precision). 4. Fixation Clamping method and chipbreaker info. D (55° Diamond)
(0°/Neutral), C (7°), P (11°). Neutral inserts are double-sided; positive inserts are single-sided. 3. Tolerance Allowable deviation in dimensions. R (Round). 2.
(80° Diamond), D (55° Diamond), T (Triangle), W (Trigon), S (Square), R (Round). 2. Clearance The relief angle behind the cutting edge.
The full code can contain up to 13 symbols, but the first are mandatory for standard turning inserts. Core Designation Breakdown (Positions 1–7) Common Examples 1. Shape The outline geometry of the insert.