Circle Cutter RWS160 is an adjustable compass for cutting circles in carpets and flooring. The centre point can be adjusted to a radius of 210mm on an easy to read scale. The blade can be exposed up to a depth on 10mm. Extra spare blades are held within the handle. This tool has its uses as a repair aid or in areas that require accurate cutting. One for the professional carpet fitter. Take a look at UK Flooring TV https://www.youtube.com/watch?v=zV_0xUZlqqM