Precision ground for heavy use and easily sharpened, it can enlarge existing holes with ease and can bore any arc of a circle.
Carbide tip is specially designed to pass through hole cleanly in end grain and thin stock, great for boring concealed hinges and door clocks.
Should work with an electric drilling tool, which is not included here.
Twin scribers and centering point to give the perfect solution to repeated, clean and accurate hole cutting time after time.
Hand drill or electric drill is not recommended.The hinge boring bit is specialized in opening holes in soft and hard wood.