HIGH QUALITY: High quality materials, industrial use, suitable for reaming of tapered holes, chamfering, deburring on wooden boards, counterboring easy to screw. Uses: cutting tool Drill setting has good material toughness, wear resistance and drilling ability, suitable for cast iron, copper and aluminum die steel alloy steel. EASY TO INSTALL AND DISASSEMBLE: Simply loosen and tighten the screws to adjust the length of the countersunk bit of various length screws. USEFUL: For installing hex tools such as pneumatic screwdrivers, electric screwdrivers, screwdrivers, manual jackhammers, etc. is a good conversion accessory. QUALITY ASSURANCE: To provide you with the highest quality assurance, if you are not satisfied with the product, please contact us. Size:5-16mm Features: High quality materials, industrial use, suitable for taper hole reaming, chamfering, deburring on wooden boards, easy to screw counterbore. The drill set tool has good toughness, wear resistance and good drilling ability, suitable for cast iron , copper and aluminum. Loosen and tighten the screws to adjust the length of the countersunk head drill bit of different length screws. Product size: Taper Reamer 5-16mm size: 9*11cm Product Features: Taper Reamer 5-16mm Packing list: 1xTaper Reamer Note: 1.Please allow 1-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real standard.