Fangrui Product Details [adaptability] This Soldering Iron Tip Can Be Adapted To Ts100 Soldering Iron Tips And Interchangeable With Standard 936 Universal Soldering Iron Tips. It Can Realize The Embedding Of M2 (common To M2.5), M3, , M5, M6 (1/4inch), And M8 Hot Melt Nuts [premium Metal Material] Our Heat Set Insert Tip Is Made Of High Quality Metal Material, Which Is Very Sturdy And Can Be Used Repeatedly. It Has Good Thermal Conductivity And Can Quickly Insert Nuts [hand-tightened Knurled Joint Design] It Adopts Hand-tightened Knurled Joint Design, And The Main Joint Can Be Disassembled And Replaced With A Different Type Of Threaded Pressure Head While Cool [smaller Embedding Distance] Compared With Other Similar Heads, Our Embedding Distance Is Smaller, Which Can Prevent The Plastic Parts From Deforming After Embedding. The Head Is Not Easily Damaged And Can Be Inserted Into Plastic Parts To A Certain Depth [after-sales] If You Have Any Questions, Please Get In Touch With Us, Our Service Team Provide You With A Professional