| Comparison Items | 1203 Insert | 1504 Insert |
| Shape | It is generally square or rectangular, with the four corners chamfered or rounded to different degrees to meet different processing requirements and reduce tool wear. | It is mostly diamond-shaped, with angles of various specifications such as 55° and 80°. The 55° diamond shape is relatively common. This shape can provide good cutting stability and chip removal performance during turning operations. |
| Material | Common materials include cemented carbide, coated cemented carbide, cermet, etc. Cemented carbide has high hardness, wear resistance, and good impact resistance, making it suitable for processing various materials of different hardness levels. Coated cemented carbide is coated with one or more layers of wear-resistant and high-temperature-resistant coatings on the cemented carbide substrate to further improve the cutting performance and service life of the tool. Cermet combines the high hardness of ceramics and the toughness of metals, having good cutting performance and surface quality, and is often used in high-speed cutting and precision machining. | Similar to the 1203 insert, it also includes materials such as cemented carbide, coated cemented carbide, and cermet. Different materials of 1504 inserts have their own characteristics in performance, and can be selected according to specific processing materials and technological requirements. |
| Application | It is mainly used for milling operations, such as face milling, side milling, and contour milling. It is widely applied in fields such as mold manufacturing and mechanical part processing, and can process various materials such as steel, stainless steel, and cast iron. | Besides being used for milling operations, it is also often used for turning operations, such as external turning and internal hole turning. It is suitable for processing various metal materials and plays an important role in industries such as mechanical processing, automotive manufacturing, and aerospace. |
| Characteristics | With a relatively small size, it is suitable for fine processing and the processing of small parts. During the processing, it can achieve a relatively high cutting speed and feed rate, improving processing efficiency. At the same time, due to its shape and size characteristics, the 1203 insert has good flexibility when processing parts with complex shapes. | With a relatively large size, the insert has higher strength and stability, and can withstand a relatively large cutting force, making it suitable for roughing and semi-finishing. During turning operations, the 1504 insert can provide good cutting accuracy and surface quality, meeting relatively high processing requirements. |
