Small box Bosch cheap and convenient for once what the most common piercing materials and some screw bits, more because any use provided automatically with most screwdrivers. Attention all the time to the packaging, the locks are arranged in complicated rubbers out of the box, ditto for reinserting them, was quick of damaging the forests. As for forests, strictly speaking, they are of uneven quality, I exploded metal strands on a piece of sheet metal beast 2mm thick, for against the wood and concrete bits hold up after a few weeks use.
