This Concealed Hinge Hole Jig Set uses a Forstner positioning drill bit to provide accurate bore alignment for concealed hinge installation. The set includes a Positioner, a Hole Opener, and a pencil, and is available in two size variants: Blue Hole Opener version (Positioner + Blue Hole Opener + Pencil) and Orange Hole Opener version (Positioner + Orange Hole Opener + Pencil). Both variants are designed for clean, repeatable hinge bore results with standard drills and chucks. Key benefits Precise bore positioning for concealed hinges: the Positioner guides the drill to the correct center and depth, reducing misalignment and the need for rework. Clean, flatbottom holes: the Forstner style Hole Opener creates neat, flatbottom openings that improve hinge fit and door alignment. Quick setup and marking: the builtin pencil allows immediate marking and placement confirmation during setup. Versatile and portable: compact set that travels easily between projects and works with most standard drill chucks. Colorcoded options for easy selection: choose the Blue Hole Opener variant or the Orange Hole Opener variant to suit your project requirements. Key attributes Functionality: Concealed hinge bore jig set for Forstner positioning and hinge cutter work Compatibility: Designed for use with standard drills and drill chucks Size options: Blue Hole Opener variant (Positioner + Blue Hole Opener + Pencil) and Orange Hole Opener variant (Positioner + Orange Hole Opener + Pencil) Included components: Positioner, Hole Opener (Blue or Orange), Pencil Performance: Aids in accurate placement, consistent results across multiple doors, and clean bore finishes What makes it unique Dual coloropener variants allow you to select the opener size or style that matches your hinge type and cabinet design. Usage scenarios cabinet installation: use the Positioner to locate hinge bore centers on multiple cabinet doors, then drill with the Forstner bit to produce consistent 35 mm style recesses for concealed hinges. Door hinge replacement or : align hinge bores with existing hinge lines using the Positioner, ensuring proper door alignment and gap consistency without reworking surrounding material. Furniture or renovation projects: retrofit concealed hinges in existing furniture pieces or custom builds, marking centers with the pencil and achieving repeatable bore locations across several panels. How to use (brief guide) Position the Positioner at the intended hinge center on the door edge or frame. Select the Blue Hole Opener or Orange Hole Opener variant as provided for your project. Mark the bore point with the pencil, then drill using a Forstner style bit mounted in your drill. Verify alignment with subsequent hinges, making minor adjustments as needed before final installation. Maintenance and care Keep the components clean and of dust to maintain accurate positioning. Store in a dry place to prevent corrosion on metal parts. Inspect the Positioner for wear before use on critical installations to ensure continued accuracy. These features work together to provide a reliable, userfriendly solution for installing concealed hinges with precision. The set is ideal for professional cabinetry installers and DIY woodworkers seeking consistent hinge bore results and a straightforward workflow.