Walboard Tool 08-001/AC31 Drywall Circle Cutter Go to amazon.com Related posts 19 best drywall tools for 2022 FeatureCalibrated steel shaft enables cuts up to 16" in diameterAdjustable screw knob assures precise, clean cutsLong lasting heat-treated scoring blade for sharper cutsCarded DescriptionWallboard Circle Cutter, 16 in Cutting Diameter, 8-1/2 in Length, Calibrated Steel Blade