Dewalt D21570K 1300w 127mm Diamond Drill 240V The Dewalt D21570K diamond drill has a new top of the range motor which provides improved performance in applications with dry core bits up to 127mm in bricks or soft masonry. It has a two-speed gearbox for increased versatility when drilling in wood, metal and concrete with standard drill bits and a heavy-duty 16mm steel chuck for quick bit change and excellent bit retention. Features: The new motor gives improved performance in applications with dry core bits up to 127mmn in bricks or soft masonry Electronics provide e-clutch, power-up and overload protection Two-speed gearbox for increased versatility when drilling in wood, metal and concrete with standard drill bits Electro-Mechanical clutch increases user control and protection Heavy-duty 16mm steel chuck allows quick bit change whilst offering excellent bit retention Innovative mode selection collar allows intuitive control for optimal performance Comes with: Multi-Position side hand