This adjustable hole saw lets you drill the standard hole diameters needed for drywall, for example inserting hollow wall boxes, ceiling spotlights, drain pipes and much more. You set the appropriate diameter for your application in just a few steps. The integrated scales help you to find the right position. Matching Allen keys for loosening and fastening the screws are enclosed. Thanks to the triangular socket, the adjustable hole saw is ready to use with any commercially available cordless screwdriver. The 3 straight-set triple tooth blades saw through plasterboard and softwood boards with ease, and let you make fine and clean cuts. This means that you can do numerous projects, and save space and budget, with just one product.