Diablo Rotary Hammer Core Bit DMAPLCC1030 1 3 8 Inch Carbide Tipped Thin Wall Cutter (SDS Plus 3 Depth Concrete Brick Block Conduit Drilling) Annular Cutters 72 Meters) Rewind Gear Drive 72 Meters) Rewind Gear Drive Ratio 6:1 Planetary Fast Rewind Case Housing Material High Impact Sit Flat Polymer Composite Line Material Architecture Reinforced High Retention Braided Line Chalk Reservoir Capacity 3 oz Handheld Routers Pro Tip: Pair this 1 2 inch cove router bit with a matching 1 2 inch radius rounding over bit to create perfectly fitting drop leaf table rule joints in custom furniture builds extending tool service life up to 4X compared to standard masonry bits non binding core runs up to 3 inches deep through commercial block foundations for small diameter mechanical piping hookups