Description: Accurate:The 3 in 1 punch positioners tool ensures accurate hole placement, making it easy to create precise and professional woodworking projects. Easy to Use:The ergonomic design of the doweling jig drill set makes it easy to handle and use, even for beginners. Durable:Drilling guide set Made with high quality materials, this punch positioners tool is designed to last and withstand heavy use without wearing out. Three in :This dowel drill joinery screw set functions as a drill guide for dowel holes, a dowel jig for edge to edge and end to end joints and can be used as a dowel alignment for perfect results. Universal:Self centering dowel jigs set is suitable for both professional woodworkers and DIY enthusiasts,is compatible for most types of wood. Specification: Material: Aluminum Alloy Size Chart: Drill Bit: 8mm/10mm/15mm Packing Size: 27cmx18.5cmx6.5cm/10.63inchx7.28inchx2.56inch Package Includes: Style A 1 Hole Opener Puncher 1 Drill Bit 8mm 1 Drill Bit 15mm 1 Drill Bit 10mm 3 Round Log Slightly 1 Installation Wrench or Style B 1 Hole Opener Puncher 1 Drill Bit 8mm 1 Drill Bit 15mm 1 Drill Bit 10mm 1 Auxiliary Version, 3 Round Log Slightly 1 Installation Wrench or Style C 1 Hole Opener Puncher 1 Drill Bit 8mm 1 Drill Bit 6mm 1 Drill Bit 15mm 1 Drill Bit 10mm 1 Auxiliary Version, 3 Round Log Slightly 1 Installation Wrench 2 drill sleeve 6mm or Style D, 1 Hole Opener Puncher 1 Drill Bit 8mm 1 Drill Bit 6mm 1 Drill Bit 15mm 1 Drill Bit 10mm 1 Drill Bit 12mm 1 Auxiliary Version, 3 Round Log Slightly 1 Installation Wrench 4 drill sleeve 6mm (as you choose)