Maximum Versatility - Adjustable width blades provide flexibility with a cutting diameter ranging from 40 - 203mmOne Tool Cuts all - Reduces the need to carry a holesaw for every size making it the cost effective solution to creating large diameter holesImpact Resistant Dust Shield - Provides protection from falling debris to provide more efficient and hassle-free drillingFeatures and Benefits• Impact resistant dust shield for durability• Twin cutting blades for rapid cutting action & balance• Adjustable width blades for maximum flexibility• 40 to 203mm cutting diameter• Cutting thickness 46mm• Cutting materials: vaneer, plywood, wood board, plaster board & acrylic