Feature: 1. Metal Construction: Crafted from aluminum alloy, this drill guide features a robust structure that ensures durability while remaining lightweight for effortless handling in any woodworking project. 2. Versatile Hole Sizes: The fixed base of this drill guide offers a range of hole diameters 3, 4, 5, 6, 7, 8, 9, and 10mm, providing versatility for all your drilling needs. 3. Accuracy Clamping: Suitable for drilling and woodworking processes, this device effectively secures and centers materials, ensuring clean and accurate holes every time with minimal effort. 4. Accurate Alignment: The vertical drill guide features a center line design that guarantees accurate alignment when drilling into various appearances, enhancing your project's accuracy and professionalism. 5. Effortless Work: Simplifying your woodworking tasks, the vertical drill guide allows for smoothly, consistent drilling, making it an essential tool for both beginners and experienced craftsmen alike. Specification: Item Type: Vertical Hole Punch Locator Material: Aluminum Alloy Drill Bit Sleeve Specifications: 3mm / 0.12in, 4mm / 0.16in, 5mm / 0.2in, 6mm / 0.24in, 7mm / 0.28in, 8mm / 0.31in, 9mm / 0.35in, 10mm / 0.39in . Package List: 1 x Vertical Hole Punch Locator 8 x Drill Sleeve