Buwico Double Headed Sheet Metal Nibbler Sheet Metal Cutter with Cutting Accessories 360 Degree Rotatable Cutter Head

When using a thin plate hole opener, first insert the front end of the electric drill and the cutter into the round hole of the hole opener, connect the cutter to the electric drill and lock it, then tighten the three branches on the shelf and the stud screw?in order to prevent the hole-opener shelf from sliding; insert the ruler rod from the left to the right to position the needle upward into the small square hole of the rack. Finally, the top screw can be adjusted and tightened according to the size of the arc cut, and the ruler rod is fixed firmly. To ensure the accuracy of cutting round holes.