Straight shank Counterbores

We supply Counterbores and Counersinks made from efficient high-speed steel HSS, with different number of flutes and various execution. Countersinks are delivered together with screw for mounting the exchangeable piloting pin. They are used for counterboring of holes for screw with flat fillister head in normal materials. It is possible to counterbore prebored holes for screw body and prebored holes for thread. By using suitable pins you can recess hole for screws with hexagon nut with washer and other types recessing. Counterbores and countersinks are available in following DIN executions: DIN 373, DIN 1866, DIN 334,DIN 335 and DIN 347