Gunpla 4-1/2-Inch Double-Row Diamond-Cup Grinding
Works fine on my 4 1/2 inch angle grinder with a 7/8' arbor. Includes extra washer that looks like it will work with 5/8' arbor. It is slightly larger than 4 1/2' in diameter so it barely spins without scraping the shroud. I had been a little nervous about fit since the sizes are given in metric units.
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