Makita 8406 0.5\"/13mm Diamond Core Hammer Drill The Makita 8406 hammer drill has a torque limiter and a powerful motor. It can accept a large diamond core bit 152 mm (5-7/8\") inch diameter. This tool is ideal for making clean-cut, smooth holes in tile, ferroconcrete, marble, brick, etc. Suitable for all sizes of dry diamond core making it suitable for copper pipe, waste pipe and even soil pipes. FEATURES Heavy duty construction, ideal for site work Function switch: Percussion action for pilot hole or rotary-only for diamond core drilling Torque-limiter disengages clutch when the core jams Double insulated Variable speed trigger Excellent for plumbers, electricians, general contractors, hirers SPECIFICATION Max Drill in Steel: 13mm Max Drill in Wood: 30mm Max Drill in Masonry: 20mm Max Dry Diamond Core: 152mm Blows per minute: 0-22,500bpm No Load Speed: 0-1,500rpm Input wattage: 850w Net Weight: 3.5kg