* Makes installing hardwood floors easier * Won"t damage the flooring * Can be used with any floor thickness * Always have straight floorboards by bringing crooked planks into place for nailing * Easy to use ratcheting mechanism * Rack dimensions: 12-5/8" L X 1" W x 5/8" T * Rack plate dimensions: 1-7/8" L x 4-5/8" W x 1-1/2" H * Lifting plate dimensions: 2" W x 9-1/16: H x 1/4" T * Gear diameter: 1" * Gear shaft bolt thread: 3/8" x 24 NPT 14 teeth