The heat-resistant green coating of the grooving cutter set prevents the accumulation of sawdust, resin, and asphalt, thus improving your work efficiency. Please take good protective measures during operation to prevent wood chips from damaging your eyes. Suitable for wood panels, medium-density fiberboard, particleboard, plywood compact board, etc. Do not cut ferrous metals and non-wood materials such as steel, iron, sand, etc. These cutters are perfect for woodworking, edging, trimming, grooving, and refining wood projects and are ideal for woodworkers and hobbyists of all experience levels. Blade handle diameter: 6 mm. Includes 7 grooving cutters of different sizes, meeting basic woodworking grooving requirements. (Please check the size and suitability before purchasing)