The SDMT is a square, indexable carbide milling insert featuring a 15° positive radial rake angle and a precision-engineered mounting hole; it offers high dimensional accuracy and exceptional versatility. Designed with a four-edge usable configuration, it delivers outstanding cost-performance and is suitable for face milling, shoulder milling, and both rough and finish machining of cavities in materials such as steel, mold steel, and cast iron. The cutting edge boasts high strength, providing excellent resistance to impact and chipping; combined with a specialized chipbreaker geometry, it ensures smooth chip evacuation and a high metal removal rate. The coated carbide substrate exhibits superior wear and heat resistance, making it ideal for dry cutting and heavy-duty machining applications, and is compatible with a wide range of CNC milling cutters.