![]() ![]() READ NEXT: Best stud finder The best drill bits you can buy in 2023 1.Solid Carbide Endmills & Slot Drills For Steel Which means it’s easy to snap thinner bits with even the most innocuous of impacts.Ĭobalt drill bits are much harder at higher temperatures making them good for drilling through stainless steel and other hard materials, though they are usually way in excess of what most DIYers need.Īnd carbide – usually tungsten carbide – is a similarly tough material, and is commonly used in the manufacture of masonry drill bits. But, despite the high breaking strength they exhibit, they’re also brittle and don’t offer much resistance to bending. It’s a steel, alloyed with a range of other metals, designed to withstand the extreme temperatures generated by drilling through harder materials at high speed, hence the name. Most of the drill bits you’re likely to encounter will bear the abbreviation HSS, for high speed steel. They have a sharp double-bladed thread which allows the drill to work its way through the wood quickly. Wood drill bits are usually the easiest to spot in your set because they often have a very sharp pointed tip on the end – a brad point – which allows the bit to grip the wood, without moving around, to start the hole. They have a sharp tip and the twisted grooves along the length to allow material to be drawn out of the hole to help keep the bit straight. These are suited to drilling metal or plastic. When you think of a drill bit, most likely, a standard twist bit will spring to mind. What does a metal or plastic drill bit look like? If you’re drilling a hole more than 10mm in diameter, you may be better off with a completely different, more specialist type of drill bit, like a Forstner bit, a spade drill bit, or, for much better holes, a hole saw. If you’re drilling a hole for a screw in wood, you will need a drill bit that’s slightly smaller than the screw you’re planning to use so that the screw's thread will tap into the material. Generally speaking, DIYers will end up buying a drill bit set, rather than a single bit – although there are exceptions, particularly for specialty jobs such as when a masonry drill bit is required – so that will already have a few of the main sizes covered. How to choose the best drill bit for you What size drill bit do I need? ![]() Best drill bits for glass and tiles: Wickes 3 Piece Tile & Glass Drill Bit Set | £10. ![]() ![]() Best drill bits for wood: Bosch Professional 7pc Brad Point Wood Drill Bit Set | £8.Best drill bits for metal: Draper 18549 Titanium Nitride Coated HSS Drill Bit Set | £10.Best drill bit set: Bosch 50-Piece X-Line Titanium Drill and Screwdriver Bit Set | £17.We’ve looked at online reviews and ratings from a range of retailers to deliver our verdict. Plus we’ve thrown in our top drill bit set that covers all the main options. We’re looking at the more commonly-used drill bits here and, to make the choice easier, we’ve broken them down into the type of materials they’re designed to drill through. When you factor in price, the range of sizes available within a set, and the brand, the choice can be bewildering.īut it’s definitely worth spending the time and doing your homework because there’s nothing more frustrating than not having the correct size or type of drill bit to hand when you need it, or to find the bits disintegrating right in the middle of a delicate job. And then the shape of the cutting face can be radically different depending on the material it’s designed to drill through. That’s because when it comes to drill bits, all things are most certainly not equal.įor a start, drill bits are made from a number of different materials. It’s easy to spend plenty of time researching for your next drill, but it’s just as important to find the very best drill bits for your project. ![]()
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