^
If a ctr one fits a mk2 ph2, it won't fit a mk2 ph1 as the thread size is different.
you do have to sand it down a bit as it gets wider towards the bottom and the tip dont fit back on but ther graphite so a bit tricky to sand i put it in a drill the thread end and placed some wet and dry on the end and sanded awaywhat?...you can take the top off it...cut it and put the top back on?