Holder for inserts solder tips (metric)

This is a holder to keep a set of nut inserts hot melt implementation tools for M2, M2.5, M3, M4, M5, M6 and M8 including the shaft for the solder heating element.I designed it for this set, sold at Aliexpress, however each set will have similar dimensions.The tolerances are selected for a loose/precise fit printing with PLA.I've used standard printer settings and used the AMS for a multicolor print to have a better contrast on the letters with a 0.4 nozzle.