Slot-Based Anchors that are Quick and Easy to Install - NO Drilling US PATENTS 9,828,754 and D855,447 and 10,378,193 Create 1/2" Deep Slots with 4"-6" Diamond Turbo Blade and Angle Grinder No Special Tools or Additional Parts Required - up to 7/8" Rim Used by Professionals-Easy Enough for non-Professionals