Significant Services Johnson Level Tool 40-6201 Magnetic Sheave Alignment Laser, Black, 1 Laser Brand: Johnson Color: Sheave Alignment Laser Item Weight: 0.01 DESCRIPTION Johnson's 40-6201 sheave alignment laser's compact size makes it easy to use on even small diameter sheaves. With its easy and fast setup and the included pulley offset chart, you'll have everything you need to ensure your drivetrain is properly aligned. DECREASED VIBRATION: With a highly accurate range of +/- 1/6 in. to 10 ft.; this Johnson Sheave Aligning Tool is designed for use as a laser. It also helps with accurate drivetrain alignment; reducing vibration wear; friction; power losses and more. SECURE FITTING: This alignment level tool features rare earth magnets that ensure a secure attachment to ferrous metals; allowing quicker and safer set up. The strong magnets offer alignment for reduced noise and abrasion. HIGH ACCURACY: The magnetic aligning level is designed to detect maximum drivetrain misalignment methods; including offset; angle and twist. It comes with a pulley offset chart to determine misalignment angles for accurate aligning diagnosis. APPLICATION: This sheave laser has a laser wavelength of 520nm10nm to check height and flatness of gear box and motor mounting plates. It features three precision machined magnetic targets and has a compact size for small applications. PRODUCT SPECIFICATIONS: This Black Sheave Alignment Kit is powered by 2 "AA" alkaline batteries (included) and has a battery life of up to 2 hours. It has IP54 dust and water-resistant construction and comes packed in a hard-shell carry case for protection.