Diablo 4-3/8" SDS-Plus Carbide Tipped Thin Wall Core Bit DMAPLCC1120Diameter: 4 3 8" Shank: SDS Plus Working Length: 3" Tools: SDS Plus Rotary Hammer Drill Materials: Concrete Diablo's SDS Plus Thin Wall Core Bit range provide one of the fastest and longest lasting coring solutions on the market for concrete applications. Optimized with a unique brazing and hardening process, the carbide tips extends life and productivity, allowing users to drill fast, clean holes. Two ejector holes provide, if needed, easy removal of