Review on ⚙️ Gunpla 4-1/2-Inch Diamond-Cup Grinding Wheel: High-Performance Tool for Concrete, Granite, Stone, Marble by Telly Roden

Works great on my 4 1/2" angle grinder with a 7/8" shank. Includes an extra washer , which looks like it will work with a 5/8" mandrel. It's just over 4 1/2" in diameter, so it barely turns without scratching the sheathing. I was a little worried about the fit as measurements are in metric units It cuts grout and concrete well but as you'd expect it doesn't do well on tile It cuts quite aggressively and can leave round gouges if you're not careful But this type of disc is designed for rough and fast grinding.I used a different wheel for this - a sintered wheel with smaller grinding teeth.It wore out a little quicker than I would have liked but given the price that's more a ls acceptable.