Self-leveling point laser is accurate to 1/4" @ 100'Single lever power switch locks pendulum in the off position for added durabilityBuilt-in magnetic pivoting bracket mounts easily on metal surfacesIntegrated track clearance enables users for fast and accurate bottom and top track installationOver molded housing helps maintain calibration under jobsite conditionsFocused laser beam keeps dot size small over longer distances for improved accuracy and visibility | DEWALT 3 Beam Laser Pointer DW083K