Excellence comes as standard. Makita 8406 240v diamond drilling machine Product information 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, concrete, marble, brick, etc. Suitable for all sizes of dry diamond core from the small 28mm through to the large 152mm making it suitable for copper pipe, waste pipe and even soil pipes. Heavy duty construction, ideal for site work Percussion action for pilot hole, 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. Max in Steel: 13mm. Max in Wood: 30mm. Max in Masonry: 20mm. Max Dry Diamond Core: 152mm. Blows per minute: 0-22,500bpm. No Load Speed: 0-1,500rpm. We also offer a Next day premium option with Parcelforce which you may select in checkout.