Heavy-duty woodworking construction with longest tool lifeMulti-functions， Very convenient and affordable.Having adjustable two sharp blades on both side of the measure-bars.Adjustable Plane type design.Adjustable Capacity 30mm - 120mmMax hole thickness: approx. 25mmMaterial: hard alloySet of Cutter + Blades + Centre DrillsComes with Hex Key and Center Drill Bit2 Changeable Centre bits for thinner or thicker materials freely.Can be used cut many kinds of materials， such as Plywood， Hardwood， Laminates， Composite， Rubber， Plastic， etc?-Package Includes: 1 Set Adjustable circle cutter