Diamond Cut-Off Blade, 4" Turbo Continuous Rim. Arbor size: 7/8" with 5/8" adapter  :  Diamond Cut-Off Blade, 4" Turbo diamond blades are continuous rim and are used for general purpose dry cutting of marble, granite and stone surfaces where a smooth precise cut is needed. For use on angle grinders and circular saws. Arbor size: 7/8" (22.22mm) with 5/8" (15.86mm) adapter.