The large stroke range of the BDS magnetic core drilling machines, in conjunction with the quick-change chuck, facilitates fast and efficient working without having to repeat the aligning and centering when changing the tool. The quick-change drill chuck can be universally used for the quick-change inserts with and without safety friction clutch. High-performance lubricants for broach cutters and cleaning spray for broach cutters by BDS are aligned perfectly to the respective application. The highly efficient composition allows economical and environmentally friendly use for broach cutters. Particularly recommended in outdoor application. The BDS clamping devices for magnetic drilling machines are suitable for drilling tubes with a diameter from 80 to 250 mm and 150 to 500 mm. Flexible and quick clamping is possible in any drilling situation for magnetic drilling machines. The clamping device for magnetic drilling machines with swiveling V-blocks is fixed on the tube by means of tension chains.