BEST OVERALL: Bosch HCK005 Bulldog Carbide ... It’s not every day you can pick up a set of good metal drill bits and use them to drill a hole in brick or concrete, but it’s possible with ...

Twist drill bits. Especially in steel thicker than ¼", twist drill bits ... Annular cutters work best in drill presses or mag drills, especially for holes large than 1" in diameter in metal ...

A countersink is often essential when working with screws to ensure the head of the screw is flush with the surface. Depending on your chosen material, the best countersink bit will enable you to ...