This is a 3-in-1 woodworking dowel jig kit designed for precision furniture assembly and joinery. Made from durable aluminum alloy, the set includes various drilling guides, sleeves, and positioning tools to create accurate holes for 6mm, 8mm, and 10mm dowels. It is a versatile "all-in-one" solution for DIY enthusiasts and professionals alike to achieve seamless edge-to-edge, edge-to-surface, and corner joints.