carbide-tipped hole saws can drill through metal that is up to 5/8" thick. Though it’s possible to use a hole saw with a hand-held drill to bore a hole larger than 2" in diameter, there’s a ...

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 ...

This example of a hand pushed seed drill was manufactured around 1880 by H. Bushell & Sons in the York area. It consists of a metal frame with a large conical wheel at the front, a drill to carve ...