What it is: A durable hole-polishing attachment made from high-quality sandpaper/abrasive material, designed to polish and refine holes and internal edges on a wide range of surfaces. Key benefits: Delivers a consistent, smooth finish inside holes and recesses, reducing manual sanding time and improving final appearance. Durable construction for extended use before replacement, lowering operating costs. Low operational noise when used with power tools, making it more comfortable for extended jobs. Easy maintenance: grit can be cleaned with a damp cloth and left to dry in a ventilated area, restoring cutting performance quickly. Main functions: Polishing and deburring holes, chamfers and internal contours. Refining surface texture on both flat and complex non-flat areas. Compatible tools: Fits electric mills, electric drills and other high-performance rotary tools that accept abrasive attachments. Materials and performance: Made from abrasive/sandpaper material that balances cutting speed and finish quality. Works effectively on wood, plastic, metal and other non-metallic complex surfaces. Practical use scenarios: Furniture repair: smooth and remove torn wood fibers inside dowel holes before glue-up for tighter joints and cleaner finishes. Metal fabrication: deburr and blend the inside edges of drilled holes in thin metal sheets or pipe fittings to prepare for welding or assembly. Plastic enclosures: refine and smooth molded hole edges in consumer housings or prototypes to remove flash and improve fit of fasteners. Care and storage: Wipe with a damp cloth to remove debris, then air dry in a ventilated spot. Store in a dry place to preserve abrasive performance. This attachment is a practical, low-noise solution for improving hole quality across multiple materials and is suitable for use with common electric rotary tools.