4mm Vpoint, Through Drill Bits 70mm Long

Carbide Tipped V-point Drill Bits are designed to allow a very clean through hole. The drills have a 'V' tip that allows the outside tip to shear the top surface as it cuts allowing a clean surface at the top and bottom of the hole. All drills come equipped with a depth screw on the bottom of the shank and a flat for set screws to lock into. Coating on the fluting of the drill bits reduces the friction between the chips and the inside of the flute the help prevent burning of material. These drills can be used in a CNC machine with a drill adapter that converts the flat shank into a cylindrical shank.