Hammer-proof impact core bit with hard metal cutting edges. Ideal for countersinking switch, junction and distribution boxes. High performance thanks to very stable and thin-walled core bit body. For concrete, stone, masonry and brick. In hammer drills up to max. 4.0 kg with SDS-plus holder and 2-groove holder, in impact drills with hexagon shaft. Required machine power: up to Ø 50.0 mm min. 600 watts, from Ø 65.0 mm min. 800 watts. Supplied without center drill and holder shaft. Hammer drill-proof special hard metal plates in special alloy. High-strength special soldering. Number of cutting edges: 6.
