Adjustable woodworking upside down base rounding jig for precise circle and straight cuts. Ideal for cabinet doors furniture and DIY projects. Foldable detachable design for easy storage. Clear scale ensures accuracy. Works with MDF solid wood and fine woodworking boards. Smooth operation for grooving cutting bending and circle cutting. Features: Adjustable radius and length for versatile projects Foldable and detachable for portability and storage Clear double-sided scale for easy accurate reading Wide application: MDF solid wood fine woodworking boards Enables straight grooving cutting bending and circle cutting Specifications: Type: Adjustable router jig tool Material: Metal (red coated) Scale Range (Standard): 9–37 cm / 3.5–14.5 inch Scale Range (Extended): 9–61 cm / 3.5–24 inch Mounting: Can be mounted to workbench with optional aluminum plate Package Includes: 1 x Adjustable Router Jig Tool Note: Colour may vary slightly due to lighting and monitor settings Please allow 1–3 cm size tolerance due to manual measurement Ensure proper alignment before drilling to avoid misalignment Tighten adjustment screws securely after setup for stability Wear safety glasses when operating power tools