Perhaps one of the nastier jobs that comes with owning a home that uses water heat is cleaning the radiator. The sludge and hard deposits that build up over time make for poor water circulation and cold spots that can render a radiator nearly ineffective. That’s why there’s CombiRadHammer. This unique device fits any ‘SDS’ or ‘SDS plus’ drill, and when the hammer setting is used, breaks up the debris through mechanical impact and magnetic disruption. According to the video, the magnet is a Neodymium N52, and is encased in strong plastic casing. For £35, backers get a complete product with an expected delivery of July 2014.