Beautiful set, like other buyers I am disappointed with the level that is a children's toy. It does not give the right level strange for a level !!! (Controlled with other operational levels) An accessory that will come over the briefcase. The accessories seem solid. Concrete drill bits are for fairly light media, bricks, concrete blocks. Not made for the roller or hard stones. Wood and metal wicks correct. Various Locks correct for must be used to prolong the tip suitable for the screw head references are often indicated on the packaging screws (Obvious? Can not be necessarily for all handymen) All a bit heavy but the briefcase is well stocked and strong.