characteristic: Including 1x12mm chamfering cutter, 1x16mm chamfering cutter and 1x19mm chamfering cutter, meeting the daily processing requirements. Made of high-quality high-carbon steel, durable, high-frequency quenching and enhanced hardness. Unique 5-blade design, easy to remove chips and clean holes. Suitable for drilling 90-degree holes in wood and soft metal. It is suitable for chamfering holes on boards with low hardness, such as wood boards and plastic boards. Do not use this product for chamfering metals. describe Name: Woodworking Five-edge Chamfer Set Material: carbon steel colour: Black+Silver Package Contents: 1 x 5-edge chamfering machine set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.