Looking at a few different Heald 72A grinders. They seem to be a good 
inexpensive option and parts readily available. I have only ran universal cylindrical grinders so don’t know much about these. My part bore is 6.5” I.D. Looks like most of these have a large chuck. Do they really only have enough travel to go to a 5.5” bore? Seems like most of the info I can find says 5.5” max bore size. Machine will be used as a manual. I need to go into a 6.5” diameter bore about .25” deep and touch up 5 degree angle (form grind not reciprocate.) In addition has anyone put a cup wheel on and ground a face or depth? If so what kind of accuracy can you achieve in the “Z” axis? What workhead spindle nose do they have for chuck mounting? Thanks in advance.
inexpensive option and parts readily available. I have only ran universal cylindrical grinders so don’t know much about these. My part bore is 6.5” I.D. Looks like most of these have a large chuck. Do they really only have enough travel to go to a 5.5” bore? Seems like most of the info I can find says 5.5” max bore size. Machine will be used as a manual. I need to go into a 6.5” diameter bore about .25” deep and touch up 5 degree angle (form grind not reciprocate.) In addition has anyone put a cup wheel on and ground a face or depth? If so what kind of accuracy can you achieve in the “Z” axis? What workhead spindle nose do they have for chuck mounting? Thanks in advance. 
