The REX (mounting) countersink drill bit is a drill bit made of alloyed tool steel and is very suitable for accurately and neatly countersinking screw heads in wood. The drill bit is adjustable in depth and has a top angle of 90º. The countersink drill bits
(Ø 13, 16 and 19) are equipped with a 1/4” hexagonal connection. The push-on countersink drill bits can be secured to a wood drill with an Allen key.