With the Metabo 625020000 countersink, you drill and countersink in a single step. Simply slide this handy accessory onto a 3 mm wood twist drill bit and secure it firmly with the hexagon socket screw. Equipped with 5 durable hss cutting edges, it produces clean recesses so screw heads sit flush with the timber without splitting the wood. This saves you valuable time during repetitive joinery or furniture making. In addition, you can turn the accessory around to use it as a reliable depth stop, ensuring consistent drilling depths throughout your project.