Metal cutting tools are important tools in cutting. Commonly used are high speed steel (such as W18Cr4V, W6Mo5Cr4V2), powder high speed steel, coated high speed steel (such as PVD coating), fine grain and coated hard alloy (such as adding TaC, NbC YG type), composite ceramics (such as Si3N4 based), cubic boron nitride (such as PCBN)
Each type of helical insert is designed for different applications. Free-running helical coils, for example, are extremely flexible inserts designed so that each coil in the helical insert can independently adjust to the fastener threads.
Free Running Tangless Insert,Free Running Coil Threaded Insert,Tangless Free Running Insert,Free Running Insert Without Tang
Shenyang Liming Mechanical Component Co., Ltd , https://www.helisert.com