PacTool Gecko Gauge SA903 5/16" Fiber-Cement Siding Install Tool

One-Person Installation — Holds the siding in place so you can position and fasten without needing two people, saving labor time.

Fiber-Cement Compatibility — Designed for use with 5/16″ fiber-cement siding, including newer “eased edge” versions like Hardie’s HZ5 series. 

Adjustable Reveal — Gauges are adjustable in ¼-inch increments, allowing reveals between 4″ to 8″ depending on project needs. 

Friction-Cam Mechanism — Holds full 12′ siding boards securely so they don’t shift during installation.

Safe on Finished Surfaces — Uses heavy-gauge plastic that won’t scratch or mar pre-painted siding when used properly.