There are three tool options to consider when drilling large-diameter holes in thick steel: twist drill bits, hole saws and annular cutters. 1. Twist drill bits. Especially in steel thicker than ...

You'd be more likely to shatter the glass sheet you're drilling into completely than make a neat hole in it with an ordinary bit. This is why, for drilling holes into glass and similar materials ...

Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled specifically for metal are manufactured to drill through various materials ...

If you’ve ever been caught in the situation of needing to drill a clean straight hole down the center of a bolt or rod, you’ve probably tried and ended up with a broken bit or tilted hole ...

Working with hard metals requires the best cobalt drill bits. We tested top picks to see which bits could bore through the toughest metals. Check out our reviews and discover which one came out on top ...

If you need to drill holes in masonry or concrete, you may have heard about, or come across, hammer drills. There are two ...

But when a drill bit breaks off flush in a hole, there aren’t a lot of options, especially for a small bit. If the stars align, though, you may follow this video guide to dissolve the drill bit ...

for drilling holes into wood and metal or using the double bit for tightening screws, as well as the percussive drilling action that is great for making holes in tougher masonry and brickwork.