This adjustable hole saw enables you to drill the usual diameters that you need for preparing electrical installations, e.g. for setting cavity wall sockets, recessed spotlights, junction boxes, etc. You can set the diameter to suit your application in just a few steps. You can set the diameter to suit your application in just a few steps. The integrated scales help you to find the right position. Suitable Allen keys for loosening and tightening the screws are included. Thanks to the triangular holder, the adjustable hole saw can be used with any standard cordless screwdriver. The 3 set three-tooth groups saw effortlessly through plasterboard and softwood panels and enable you to make fine and clean cuts. This means you can complete numerous projects with just one product and save space and budget.