Expand for Pine64/TS100/TS101/900M/T85 Soldering Iron Functions: Include 2 heating tip adapters specially designed to for pine64/ts100/ts101/936/T85 soldering iron and turn them into a portable heat insert pressing machine tool to expand their functions,Heating tip with M4 thread! Wide range brass knurled nut embedded insertion tip heads include M2,M2.5,M3,M4,M5,M6,M8 to meet your most installation needs Screw installation design easy to change different head model, no need to take off the soldering iron whole tip,just screw off the tip head then install the model head Tip head made from brass with high strength and good heat conduction ensure better heat insertion performance to get a smooth and clean insert than the normal soldering iron using Ideal for install brass knurled nut into your 3D printing parts enable you assemble and disassemble your projects easily, but won't ruin or contaminate your part rather than a normal soldering iron tip that either stuck or penatrate the insert hole Color: As Shown Material: Metal Package Contents: 1*set heat set insert tool