Adjustable Depth Countersink Drill Bit - Plug Bits for Screws - Countersink Drill Bit For Wood - No Wrench or Other Tools Required
It is a product that can be controlled deeply by turning it by hand or drill. When the built-in stopper touches the wooden surface, it stops rotating and does not leave a scratch on the surface. Wood chips come out easily because the flute is long. It is the best woodworking tool.