The Crain Stair Claw RWS140, This tool can give a carpet fitter a real advantage when fitting carpets on bull nose steps. Using the Crain stair claw the carpet fitter is able to grab hold and stretch the carpet over the bull nose and hold it in place while the carpet fitter gets the staple in to hold the carpet firm around the nose, probably the best tool we have seen in a long time. One for the tool kit.