General description New motor provides improved performance for applications with dry core bits up to 127mm in bricks or soft masonry. The Dewalt D21570K Dry Diamond Core Drill features electronics that offer e-clutch, power-up, and overload protection, ensuring enhanced safety and efficiency during use. Its two-speed gearbox increases versatility when drilling in wood, metal, and concrete with standard drill bits. The innovative mode selection collar allows for intuitive control, optimizing performance across various materials. Technical specifications Power: 110V Motor power requirement: Minimum 850W Maximum dry core bit size: 127mm Chuck size: 16mm steel chuck Compatibility and accessories Includes: Multi-Position side handle Depth Stop Heavy Duty Carrying Case 8 Piece BAP Plumbers Diamond Core Set (38mm, 52mm, 117mm cores) Compatible with Makita, Dewalt, Bosch, and Milwaukee core drills Usage This drill is ideal for medium-hardness materials such as brick, concrete blocks, hard