1FLOOR REPAIR KIT: Use this kit to stop the floor from moving and squeaking. Connecting the floor and joists by driving nails into the wood is a good way to prevent squeaking caused by wood failing to hold in place 2EASY TO USE: First, use the joist search tool to find the joist of the floor; Then, the nail is driven into the floor and joist by using the accurate depth control fixture to connect the floor and joist; Finally, use a tool to unscrew the excess scored screws. Easy DIY installation without special tools 3SCIENTIFIC DESIGN: Engineering plastic alignment depth tools. The screw is notched so that when passed through the fixture, get stuck about 1/4in below the top of the hardwood. Double pitch screws tighten the floor to the joists 4APPLICATION SCENARIO: Woodworking project kits are suitable for most carpets, vinyl flooring or hardwood floors, useful and practical, provide great convenience for your life 5UPGRADE COMBO: Package includes 5 aid tools and 50 premium notch screws, no extra screws needed to buy, say goodbye to squeaky floors with this comprehensive repair kit, which include all the necessary tools and screws to eliminate annoying noises