HIGH QUALITY: High quality materials, industrial use, suitable for reaming tapered holes, chamfering, deburring on wooden boards, easy to screw counterbore. USES: Drill setting tool has good material toughness, wear resistance and drilling ability, suitable for cast iron, copper and aluminum alloy steel die. EASY TO INSTALL AND DISASSEMBLE: Simply loosen and tighten the screws to adjust the countersunk bit length of various length screws. USEFUL: For installing hexagonal tools such as pneumatic screwdrivers, electric screwdrivers, screwdrivers, hand-held 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 reaming tapered holes, chamfering, deburring on wooden boards, easy 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 drill bit for screws of different lengths. Product Size: Tapered Reamer 5-16mm size: 9 * 11cm Product Features: 5-16mm Taper Reamer 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 one as standard.