A special premium green 120 grit replacement wheel for bench grinders running at sppeds of 900-1500 r.p.m. It will not chip or burn the glass when used according to the instructions. The wheel is 6" in diameter, 1/2" wide, and has a 1/2" bore. The wheel is kept wet by applying water with a squirt bottle. The exposed side of the wheel is great for smoothing straight or outside curve cuts.
