Expand for or TS100 or TS101 Soldering Iron Functions: Include 2 heating tip adapters specially designed to for or ts100 or ts101 or 936 soldering iron and turn them into a portable heat insert pressing machine tool to expand their functions M2-M8 Brass Knurled Nut: Wide range brass knurled nut embedded insertion tip heads include M2,M2.5,M3,,M5,M6,M7,M8 to meet your most installation needs Easy to Use: Screw installation design easy to change different model, no need to the soldering iron whole tip,just screw off the tip then install the Better Performance:Tip made from brass with high strength and good heat conduction better heat insertion performance to get a smooth and clean insert than the normal soldering iron using 3D Printed Parts Essential Tool:Ideal for install brass knurled nut into your 3D printing parts enable you assemble and disassemble your projects easily, but 't ruin or contaminate your part rather than a normal soldering iron tip that either stuck or penatrate the insert hole Colour:Photo Color Material:Metal Package Contents: 1 set x Heat Set Insert Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.