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Johnson 40-6242 Laser Precision Level with GreenBrite Technology
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- Measures level or plumb using precision level vial or two plumb vials that are built in and factory set
- Green beam is 40% more visible than red beam
- Turn the laser on by turning the battery cap switch
- Mark the center of the laser dot and subtract 1/2" to reference the bottom of the level
- Working edge is machine flat to 0.005"