Features: Premium aluminum body ensures durability and accuracy for long time woodworking performances, feature upgraded stainless steel drill sleeves that enhances vertical drilling accuracy. Integrated side measurement scale simplifies board thickness calculation while rubber pad guarantees scratch proof clamping, combined with extended roller bit for deep holes without tool changes. Ideal for professional woodworkers, cabinet maker, and DIY enthusiasts requiring millimeter level accuracy in furniture assembly and concealed hardware installation projects. Perfect for creating invisible shelf supports in closets, installing concealed rebounds mechanisms in modern cabinetry, or drilling consistent depth pilot holes for concealed joinery systems. This compregensive drilling solution revolutionizes workshop efficiency with its auto adjusting depth collar system and impact resistant aluminum rotating rod, eliminating uneven boreholes in multilayer board applications. Specifications: Component:Aluminum Alloy Body+Stainless Steel Drill Sleeve Size:Approx.78x36x68mm/3.07x1.41x2.67inches Package Includes: 1Pc Accuracy Woodworking Hole Punch note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color. Thanks!