KOR-IT electric core drill, it will be able to drill a huge hole in concrete or asphalt without difficulty, power as much as 2600 watts. With this power, you can drill holes up to 12 inches in diameter. It also has two speeds - 460 and 900 rpm, yourself select the optimal mode for any material: whether it's concrete, asphalt or even reinforced concrete. It's got a special safety clutch and an overload protection switch. It has a special tap for water supply, allows you to drill "wet", which reduces heat and dust. Despite its power, it is quite easy to move thanks to the roller base, and the tilt stand allows you to drill at different angles. A professional tool that is built for hard work and long service life.