Craftsman Laser Guided Measuring Tool #48252 Craftsman #48277 Accutrac Laser Measuring Tool Bosch GLM 10 Compact Laser Measure Do all your measuring the modern way with a laser measuring tool. Highly accurate and so easy, you'll wonder how you did without one. It can measure from 2-50' distances, and has a built in function which can accurately calculate square and cubic feet area from the line dimensions. You simply hold the butt of the tool against the wall, level it with the 2 bubble vials, and hit "READ" to get your accurate measurement to the far wall.