ALL IN ONE KIT - Marksman PRO-X1 Tool, (700) 1-7/8\\\" Edge Screws (covers approx 400 sqft).\nHIDDEN EDGE FASTENING - installs two patented CAMO Edge Deck Screws through the edge of the deck board—not the surface\nAUTOMATIC SPACING - Fits any 5-1/4 in. (133mm) to 5-3/4 in. (146mm) deck board and creates automatic 1/16 in. (1.58mm) spacing\nIDEAL FOR TREATED LUMBER - designed for treated lumber but also works for composite and PVC deck boards\nREDUCE SPLITTING AND CRACKING - CAMO Edge Deck Screws have a unique design to auger material and provide a strong, fastener free look\nWORKS WITH ALL DECK BOARDS. The Marksman PRO-X1 and Edge Deck Screws can be on used all all board types. This includes square or grooved composite decking, pressure-treated wood, PVC, or hardwoods