Why do the different manufacturers refer to their needle and tip sizes in different ways?? Some refer to just Fine/medium?large or they give us mathematically challenged citizens a headache by using 0.5mm or whatever!! I have just bought an all whistles and bells double action with cut-away handle, under nozzle adjustment screw,swivel head,etc.It came with a 0.25mm needle and head.So what does that equate to?? Fine/medium or just a good all round size.
Should have paid more attention in maths instead of English Lit....