I have a 618 Harig Automatic with HSS ways. Very nice machine 80's model best I can tell. It does what i need. power feed is a definite must for anything other than tool or punch grinding. I wish mine had auto down, but just X & Y. The Harig does reverse Y so you can let it go and spark out. Flood coolant is another must for grinding anything big or holding tight flatness tolerances. The 6 x 18 is a nice size, does most everything i want, but one size bigger would be nice. With grinders it not the machine that breaks the bank. It is the accessories. vises, parallel blocks, v blocks, spindex, punch grinders, electric centers, on and on and on.... it's a nice addiction though.