I have an Emco Compact 5 milling machine that I use for the odd job here and there. I quite enjoy over complicating things by making up my own specific tools/parts and am looking to expand it's function.
I was given it by my uncle and it only has a 3 jaw chuck on it with a chuck key size I don't have. I've been using a different chuck key to tighten but it isn't cutting it when machining accurately as I can't get a very good grip on the bits and they tend to travel. There is an accessory available that allows you to fit a m14 threaded collet chuck/holder. This is unobtanium as far as I can see. Does anyone have any suggestions as to what I could use instead that isn't going to break the bank? Or could make up an M14 threaded collet holder that I could fit to it?
Or any idea on the chuck key that may fit? All the ones I have tried have been no good (don't fit as it's a weird size) or when I have modified them, have fallen to bits as they are made of cheese.