Adjustable Saw Hole Diameter 45mm-130mm Wood Working Hole Opener Cutting Tools for Gypsum Board Cork Board

MULTIPLE ADJUSTABLE DIAMETERS: This multi-diameter adjustable wood drill from 4.5 to 5.5 inches can use a single tool to drill holes of different diameters saving money and space. Easy to use: no complicated instructions. Stepless adjustment requires only three steps: loosen and adjust grasp. Multi-purpose: widely used for carpentry openings spotlight openings plastic panel openings speaker openings etc but not for glass and metal. Neat and fine cutting: three teeth cutters can easily cut drywall and cork boards and their special straight serrations ensure a neat and fine cut. Triple cutter straight round effect smooth cut without burrs. Compatible tools: the hole saw is about 10mm and is suitable for all electric drills and non-standard screwdrivers. Note: The screwdriver without is only suitable for drilling drywall while the electric drill can be used for drywall oriented chip board cork plywood etc.