General description The Vertical Drilling Jig Set is an essential tool for precise center marking and drilling. Made from high-quality aluminum alloy with an anodized surface, this sturdy and durable drill positioner ensures high hardness, wear resistance, and rust-proof usability. It is designed for both DIY enthusiasts and professionals, making woodworking projects easier by ensuring perfectly aligned holes. Technical specifications Material: Aluminum Alloy Weight: 270g Maximum Board Thickness: 45mm (1.77 inches) Drill Sleeve Diameters: 2mm (0.07 inches), 3mm (0.11 inches), 4mm (0.15 inches), 5mm (0.19 inches), 6mm (0.23 inches), 7mm (0.27 inches), 8mm (0.31 inches), 9mm (0.35 inches), 10mm (0.39 inches) Compatibility and accessories Includes 1 positioning unit Includes 9 stainless steel drill bits (sizes: 2mm to 10mm) Designed to adapt to different thicknesses of wooden boards Installation Measure and mark the drilling location on the wooden board Select the appropriate size drill