This tool can be used to strip round cables from 4.5 to 22 mm in diameter. It has a self-tensing swing bar assembly, an adjustment control to set the depth of the cut according to the housing and a control for the pivot of the longitudinal cutting blade. A replacement blade is located in the lower part of the handle. Replacement blades are available to buy from our website in a pack of 1 (RS 162-5458)