Features: The wall drill adapter offer multi materials compatibility, effortlessly drilling through concrete, brick, and hollow wall with precise while integrating a fast change design for seamless bit swaps. Crafted from high strength alloy steel, this adapter features anti jamming grooves and lightweight construction to minimize friction during tough drilling tasks. Ideal for professional contractors and DIYer enthusiasts seeking reliabled performances in construction sites or home renovation projects. Perfect for installing shelves, or creating cable pathways in varied wall types, ensuring accurate hole placement every time. Engineered with a fails safe locking mechanism, this adapter maintains stable rotation even under high torques, maximizing drilling efficiency across challenging surfaces. Specifications: Component: Alloy Size: Approx.32x70.2mm/1.25x2.76inch Color:White/Black Use scenarios: Suitable for various scenarios such as wire and pipe penetration, HVAC installation, decoration projects Package Includes: 1pcs Wall Hole Cutter Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.