PRO GRIP CLAMP: Ideal for one-person installation, this siding mounting block gauges and supports the next course for nailing, with virtually no layout time. Making any job ideal for one-person installation, with more accuracy, and 50% percent faster. SIDING TOOLS: Our gauges can be adjusted at 1/4-inch increments for 4 to 8-inch siding reveals, and the patented Friction-Cam mechanism can support full 12-foot cement-board siding lengths. This feature ensures equal spacing between each board. PROFESSIONAL EQUIPMENT: This product is safe to use on primed or pre-finished siding products. Made from durable plastic, the locking grip is made from a rubber material, ensuring that the front face of your siding will not be scratched or damaged. LIFTING TOOLS: Works with 5/16-inch James Hardie’s including the updated HZ5 series with a new “eased” drip-edge profile. Designed to hold the board at the correct height, these hands-free clips help install fiber cement siding with less fatigue and more productivity. PACTOOL: Trusted for decades, we are the leaders in specialized construction, renovation, and remodeling designs. Our cutting-edge product line inspires craftspeople and DIYers to work smarter, measure better, and repair more efficiently.