Fangrui Product Details Fangrui Product Details [a Wide Range Of Sizes To Choose From]: There Are 6pcs Heat Set Insert Soldering Tips For Heat-set Inserts M2 M2.5 M3 M5 M6,wide Size Range Gives You Lots Of Flexibility To Choose The Right Insert For Your 3d Printing. [designed For 3d Heat-set Inserts Installing]: This Tool Set Is Made Especially For Inserting Heat-set Inserts Of 3d Printing Parts,each Tip Head Matches The Corresponding Inserts Perfectly, Very Easy To Install The Insert And More Importantly You Get A Smooth And Clean Insert. [made Of High Quality Brass]: This Tool Set Is Made Of High Quality Brass,it Is Anticorrosive And Has Great Heat Conduction. [work Better]: Installation Tip Works Soldering Iron Tip Since Conical Tips Can The Insert And Accidentally Pull The Insert Out While Melting The Plastic And The Part. [wide Compatibility]: Using Integrated Design, The Structure Is Stronger And Integrated Design, The Components Have Stronger Stress-bearing Capacity. Suitable For 936 Soldering Iron Tip Colour:yellow Material:brass Package Con