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 ¼", ...

Almost any general-purpose twist bit will do a decent job of drilling holes in metal. In fact, most drill bits labeled ...

A hole is nothing. Or more precisely, it’s the absence of something—wood, metal, concrete, or any number of different materials. Since holes are nothing, why do we care about them and how to make them ...

Q. I’ve got to install a new interior door lockset. The door has no holes in it. I’m completely perplexed at how to drill the holes. Do I just grab my jigsaw? Should I just hire a professional to do ...

HEIDENHAIN is a world-leading provider of encoders, machine controls, touch probes, digital readouts and metrology solutions—empowering engineer...READ MORE Sunnen’s SHDD-4500 can solid drill inner ...

Q: I have to install a new interior door lockset. The door has no holes in it. How do I drill the holes. Do I just grab my jigsaw? A: You don’t need special tools to drill the two holes required for ...

ATLANTA, May 6, 2025 /PRNewswire/ -- Diablo Tools ("Diablo"), which offers a solution-oriented range of best-in-the-world and best-for-our-world products for the professional user, unlocks new levels ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics. He ...

Hole saw attachments to cut perfect larger circles Some projects call for circular cuts that aren't easy to make manually with a saw. That's where the hole saw attachment comes in handy. It's a ...