It is used for woodworking opening and processing of round cork. It can be used on professional equipment such as bench drills and hand drills. It is recommended to use bench drills (because hand drills will slam), and the drilling speed should not be too high when opening holes. The smoke condition is also normal. At this time, you can stop the inspection of the cutting edge. If necessary, you can grind the cutting edge yourself to ensure that the cutting edge is sharper!
