Are you into DIY carpentry work? Or do you just want to change that broken door or hinge by yourself? Here is the perfect tool to help you with drilling jobs. This is a self-centering drill bit that is made out of high grade speed steel carbide that can easily penetrate materials like wood, concrete, ceramic, plastic, and even metal. What’s amazing about this extension equipment is it has a self-centering feature that normal drill bits don’t have. This feature is especially helpful in installing door hinges, window pulls, window latches, and anything that needs holes for screw installations. A big problem with drilling holes is that you can only see the inaccuracy of the position once you installed some screws. With the help of this tool you’ll precisely be able to drill on the position of holes and not worry about it moving while the screws are installed. No more wasting time on drilling the wrong holes. It also has a slip-free attribute because of the shank that is shaped like a triangle. With this shape, the drill bits are tightly attached and never slip. The material is not the only thing that makes this drill bit unique. It also has a pointy spear shape that helps it drill through different kinds of substances. It is easy to install and it is widely compatible to any common standard drill that uses electricity. Just attach the drill bit to the drill machine and you’re good to go. It also comes in different sizes to perfectly fit your specific carving requirements. Material: High Speed Steel + Cemented Carbide Color: Orange Diamond Package Inclusion: Set of 4 PCS ( 6 mm, 8 mm, 10 mm, 12 mm) Weight: 160g