This SDS drill bit set differs significantly in price of building market offers. For this gets one but also a completely different quality grade. The drills go like butter in the reinforced concrete ceiling, in conjunction with a new Bosch Hammer it was a pleasure without any pressure and torture multiple 6.8 and 10mm holes for drilling. My tip would rather invest in quality and more price, for you do not play the famous "HB-males". The farmer knows what I mean. From my full 5 stars.
