E61 group head wrench (mushroom)

This is a wrench to undo your Faema E61 group head mushroom and flow restrictor/ filter mesh cap. The size is 36 mm on one end and 22 mm on the other. I used it on my Rocket Appartamento (sizes should be the same for other brands but maybe check it beforehand).

I printed mine in PLA with 50% infill and really important 5 or more perimeters and random seam posirion, which gives the needed strength to undo the threads. To undo the top 22 mm cap it may be neccessary to print two wrenches to exert the needed reaction torque.