Made in the USA W.L. Fuller Made of carbon steel & heat-treated for long tool life Quick change For use in all woods, plastics, & non-ferrous metals 1/4\” hex ball shank 82 cutting angle head Four flutes for clean & accurate boring Two hex-socket set screws in countersink Product Description Specs A high quality American-made quick change countersink made by WL Fuller. Made of carbon steel & heat-treated, this countersink is very well-built, durable, & cuts into materials well. This type J countersink is designed for use in all woods, plastics, & non-ferrous metals. It has four flutes for clean & accurate boring, & a standard 82 cutting angle which will accommodate most bevelled screws. The countersink is held in place with two hex-socket set screws fastened into the bit. This countersink can be mounted on taper point, brad point & regular point drills. Made in the USA. The W.L. Fuller Co. is a family owned, third generation manufacturer of the best countersinks, counterbores, plug cutters, taper point drills, brad point drills, & step drills. All made 100% in the U.S.A. today. With over 60 years experience manufacturing tools to cut woods, plastics, & metals, Fuller provides tools you need to get the job done while saving you time & money. All of their products carry their satisfaction guarantee. Model Cutting Diameter Drill Hole Size Overall Length Ball Hex Shank Size #J56H 3/8\” 3/32\” 2\” 1/4\” #J4H 3/8\” 7/64\” 2\” 1/4\” #J5H 3/8\” 1/8\” 2\” 1/4\” #J6H 3/8\” 9/64\” 2\” 1/4\” #J7H 3/8\” 5/32\” 2\” 1/4\” #J8H 3/8\” 11/64\” 2\” 1/4\” #J9H 3/8\” 3/16\” 2\” 1/4\” #J25H 1/2\” 1/8\” 2\” 1/4\” #J26H 1/2\” 9/64\” 2\” 1/4\” #J27H 1/2\” 5/32\” 2\” 1/4\” #J28H 1/2\” 11/64\” 2\” 1/4\”