The Difference: Drill bit and driver bit
A drill bit is an accessory used with a hand drill, cordless drill/driver or drill press to create holes. Drill bits are designed for specific materials, including wood, plastic, metal and glass, and composÂite materials like concrete. They come in a wide range of sizes (for specific hole diameters) and lengths. Drill bits are typiÂcally made from high-speed steel (HSS), carbide, cobalt or titanium-coated metÂals. Most can be resharpened using bench grinders or specialized drill bit sharpeners. Woodworkers frequently use several types of drill bits, such as twist bits, Forstner bits, brad point bits, tapered bits, spade bits and auger bits. Drill bits have a mix of cirÂcular and hex shanks.
A driver bit, also called a screw bit, is used to fasten screws and sometimes nuts and bolts. Screws come in various head styles, including slotted (flathead), Phillips, Robertson (square), hex and Torx. Driver bits are designed to match these screw-head styles and are available in different lengths to suit various tasks. Made from hardened steel to withstand high torque, driver bits are often used with bit holders for better control and convenience. Driver bits generally have hex shanks.
Left to right: Twist, Forstner, brad point, tapered, spade and auger.
Notice how drill bits have a mix of hex and round shanks, depending on their size and how they’re typically manufactured.
Left to right: Slotted, Phillips, Robertson, hex and Torx
Notice how driver bits all have hex shanks. These shanks fit nicely into either a bit holder that’s chucked into the jaws of a drill / driver or directly into a hex chuck of a drill / driver.
Bit Holder
A bit holder is a great way to allow quick and easy changes between any driver bit or drill bit, as long as the bit has a hex shank.
Carl Duguay - [email protected]
Carl is a Victoria-based furniture maker and the senior editor at Canadian Woodworking & Home Improvement.