In the past, we’ve had to guess which Imperial bit or anchor is most comparable to the metric one called for, so we were excited to test these carbide-tipped metric drill bits. After drilling 10 ...

Twist drill bits. Especially in steel thicker than ¼ ... trying to use a hand-held drill in an awkward location. 2. Carbide-tipped hole saws. With adequate lubrication in a drill press, carbide ...