Meacase 4-1/2 inch Tuck Point Diamond Blade with 0.250" Width 7/8"-5/8" Arbor for Mortar Removal, Grout Repair and Cleaning of Concrete - Amazon.com
4" Premium Tuck Point Diamond Saw Blade For Mortar Removal - Benchmark Abrasives
7" Diamond Tuck Point Blade for Mortar Joint 1/4" Width and 3 Pieces of 7" Diamond Segmented Cutting Blade for stone concrete travertine lapidary saw circular saw - - Amazon.com