Made from high‑strength alloy for long service life: built to resist wear and maintain cutting accuracy over repeated use. Adjustable cutting diameter: quickly set the hole size you need for precise, efficient drilling in wood, plywood, drywall and panels. Integrated adjustment scale: clear, repeatable markings let you fine‑tune the cut diameter so each hole matches your specification. Designed for enthusiasts, engineers and woodworking projects: practical tool for both hobby and professional applications where clean, accurate circular holes are required. Reliable performance: robust construction and a stable cutting path reduce wobble and improve finish quality, saving time on rework and sanding. Practical applications Installations in drywall: cut neat, correctly sized openings for recessed lighting, fixtures or access panels. Furniture and cabinetry: create precise cable pass‑throughs, speaker cutouts or component openings in plywood and panel stock. Prototyping and engineering projects: rapidly produce consistent circular holes in panel materials for testing and assembly. What you get A durable, adjustable hole opener that simplifies making accurate circular holes across common building and woodworking materials. Straightforward adjustment and a measurable scale for repeatable results. Notes Suitable for drilling holes in drywall, plywood and panel materials. Follow safe drilling practices and use appropriate pilot bits or guides as required by your setup.