Makita 8406 0.5"/13mm Diamond Core Rotary & Percussion Drill comes with drill chuck, chuck key, and side handle The Makita 8406 hammer drill has a torque limiter and a powerful motor. It can accept a large diamond core bit with 152mm (5-7/8") diameter. This tool is ideal for making clean-cut, smooth holes in tile, ferroconcrete, marble, brick and more. It accepts all sizes of dry diamond core from the small 28mm through to the large 152mm making it ideal for use with copper pipe, waste pipe and even soil pipes. Satisfied customers who bought this tool say: "Sturdy yet not too heavy to use, made cutting a 6 inch hole through concrete feel like cutting through warm butter." "Best drill I have bought." Features: Double insulated Variable speed trigger Heavy-duty construction, ideal for site work Torque-limiter disengages the clutch when the core jams Excellent for plumbers, electricians, general contractors, hirers Percussion action for a pilot hole, rotary-only for diamond core drilling