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Technical ParametersDrilling dia: 25mmColor: BlueShank type: Round shankMaterial:Cemented carbide;Product Feature*Can be used for wood product perforation,installation of spherical door locks,drawer locks,hard plastic products,etc.Dedicated to wood board opening and mounting hinges.*When positioning the drill,please wait a moment and then drill slowly.*If there is any abnormality or chip removal during operation,please stop working immediately and clean the debris before continuing the drilling operation.Instructions for woodworking hole opener1. Put the hole opener into the electric drill before use and confirm that it is firmly clamped before it can work.2. Keep the vertical angle with the workpiece when working. After the hole opener drills through the workpiece, the workpiece should be withdrawn while the hole opener is rotating. Please clean the sawdust in time to avoid opening failures during continuous work.3. Workers should wear corresponding protective equipment when working to protect them from working safely, and apply rust oil after use to extend the service life.Package Includes1 x Hole Opener