The fastest and most accurate woodworking tools for hardware. Save time making wooden models. With millimeter and inch scales , aluminum alloy and steel construction for durability. Set it once and Reuse it without further measurement. This jig allows you to measure the perfect hole position for cabinet handles, pull handles and knobs. Multi-function jig for precise mounting of pull handles / knobs in drawers and doors, l-bracket and top screw to keep them glued. Made of stainless steel and aluminum, it is durable enough to be used thousands of times. Specifications : Material: Aluminum Alloy + Stainless Steel Hole: 5mm Scale: CM / Inch Vertical Scale: 0 - 25cm / 0 - 10 inch Horizontal scale: 20 - 0 - 20cm (40cm) / 8 - 0 - 8 inch (16 inch) Edge to Center of hole: 20cm