Rather heavy and noisy drill. But the wire is long enough which is convenient next where you are. Delivered with extra coal play. To date, I drilled faience no problem taking normal precautions (pilot hole), concrete to ask racks Shelf (it must be the same force in percussion mode, but it happens!) And installed a peephole Optical (hole 12) The drill worked well. It has a button for variable rotation speed, and also reversing the direction of rotation !!! In short, for the price, and for occasional handyman, TOP !!!!