Here is a picture of the new Miil Guides I am installing. They are 5 inchs longer for a total of 20 inches and fit tighter in the bore by .001. They are chrome plated 1045 steel. We started to make the new lift screw using B7 5/8"-8 acme all thread. The lift motor is a 1/6 hp 57 RPM 115volt gear motor. The lift nut will be modified by boring out the center and threading the flange and installind a bronze nut that is taped to size.