Features Designed to clean internal tube ends quickly and safely. Manufactured with high quality steel cutters to remove damaged metal and burrs. Scope of application: Chamfering of openings in wood and plastic boards, which are not very hard. Product Information Product Name: Reamer Chamferer Material: high carbon steel Product Size: 12mm, 16mm, 19mm Product color: gold Packing Listeaming and chamfering *3 Please note: 1. Due to the long shipping time, the item may be damaged during transportation, if the item is damaged, please leave us a message through the official website immediately before posting a comment, I will solve the problem for you. 2. Due to manual measurement, the size may have 1-3cm error. 3. 3. The color displayed by different monitors may vary.