Walter ALLSTEEL™ Blending Disc 6" GR: 40 15W604 - Pack/10

Best overall

I use several different brands of flap disc but Walter is the best overall. They hold up longer and grind down quicker. I use them mostly to sharpen my lawn mower blades and bush hog blades. I usually run through one disc on my bush hog (6 blades) but the blades are very thick and these hold up about twice as long as the others I've used.