Mastercraft Air Roofing nailer selector

I recreated the Nail speed selector, while attemping to fix a leak comming from the trigger valve i punched out the roll pin in the wrong direction, breaking the selector switch
it is made with PLA the hole for the Metal shaft is Slightly too small, cut some light grove into the shaft with a dremel, or file, heat up the shaft with a propane torch, and press the hot metal into the plastic parts, making sure to have correct alignement, and voila, problem fix, now you have a selector switch again

this design is for the Old navy blue mastercraft tools sold from canadian tire,
i havent tested the fit on the newer models( sky blue)