This carbide forstner bit has a 5/8" cutting diameter and a 10mm shank compatible with all standard drill and drill press chucks. Drill clean and accurate holes in solid wood, plywood and MDF Constructed with carbide tips for quality and longevity The 10mm shank is compatible with all standard drill and drill press chucks Hardened steel body for increased rigidity, Weight: 0.14550509292 pounds, Manufacturer: Yonico