wet stone cutter 5" 6" 7" Diamond saw Blade 15 PCS lapidary concrete floor cut

(a) Angle Grinder 5/8"-11 Spanner Lock Nut & Backing Flange Set. with this lock ring nut and wrench set, your 5/8"-11 spindle grinder / polisher can work with all 5/8" non-threaded abrasive tools.

eBay