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Johnson Stair Gauge, Heavy Duty, Square, Brass, Johnson, 5-1/4 in Overall Height, 2-1/2 in Overall Width, 3/4 in Overall Depth, SAE, Used With Rafter and Carpenter Squares to Speed up any Measuring Jobs
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Easy attachment to any rafter square. Use for angle cuts on rafters, or stair stringers. Can also be used as security stops on window or door metal channels.
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