PacTool Gecko Gauge 8 in. X 5/16 in. D Fiber Cement Siding Tool 2 pk

The Gecko Gauge SA903 gauges and supports cement-board siding for one-person installation with virtually no layout time. It is adjustable at 1/4 in. increments for 4 in. – 8 in. siding reveals. It won’t scratch or mar pre-painted siding. The Friction-Cam mechanism supports full 12 ft. cement-board siding lengths. It can be used with 5/16 in. fiber-cement siding products, including James Hardie’s updated HZ5 series with new “eased” drip-edge profile.