Material: Made of high-quality alloy and tungsten steel. High temperature resistance, wear resistance, high hardness and long service life. It can provide a smoother, neater and sharper cutting effect. Packaging includes: 1 piece of Deburring External Chamfer Tool. Size: Hexagon handle (1/4 inch) and larger working diameter (3/16 inch -1 inch, 5 mm -25 mm). See the picture for details. Advantages: Deburring chamfer tool adopts professional design, which can provide perfect and accurate deburring effect. Connect the external chamfer to the end of the electric drill, and apply slight pressure to make the electric drill run at a low speed and remove burrs easily. You don't need to spend time and money looking for hard-to-find or expensive replacement bolts, thus simplifying the maintenance process and giving you a good experience! Wide application: Deburring External Chamfer Tool is compatible with most devices on the market. It can provide perfect chamfering on a variety of materials, ensure smooth edges and safely handle any burrs or defects. It is an ideal choice for mechanics, metalworkers and 3D printing enthusiasts!