Description:45mm Hole Saw Cutter Carbide Tip TCT Drill Bit with SpannerSpecification:          Material       Metal           Length       67mm           Diameter       45mm           Handle Diameter       9mm           Fit for       Hand drill、 bench drill and other machines.            Features: * Use the blade alloy manufacturing、 good stability、 resistance to cutting. * Use for stainless steel、 a metal plate. Aluminum and so on. * It can be installed a hand drill、 bench drill and other machines. * Durable、 has the advantage of processing thick sheet.    Note:   Sliced material must be fixed well、 it can not have moved.   When beginning to drill、the material should be slowly contact.It can not hit the workpiece and use low speed.   When installing screws should be smooth、 so as not to put the screw twist.    Package Included: 1x Drill Bit 1x Spanner  More Details: