HIGH QUALITY: High quality materials, industrial use, suitable for reaming tapered holes, chamfering, burring on wooden boards, easy screw counterboring. 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 countersink bit length of various length screws. USEFUL: For installing hexagonal tools such as pneumatic screwdrivers, electric screwdrivers, screwdrivers, hand 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:5-16mmFeatures:High quality materials, industrial use, suitable for reaming tapered holes, chamfering, deburring on wooden boards, easy screw counterboring.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 of different lengths.Product size:5-16mm taper reamer size:9*11cmProduct specifications:5-16mm taper reamerPacking list:1xReamer ConicalNote: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.