By using controlled pressure it is possible to use just one stone grit for polishing and honing. Stones are square end to hone to the end of step-cut end blind-end cylinders.

3 stones, 1" long , 320 grit; Adjustable range 1 1/2" to 3 1/8" (38.1mm to 79.3mm);

Note: See 530772 for replacement stones