
Bits Types & Sizing
How big is a 3/8 drill bit? A practical sizing guide
5 min
8 articles







Discover what a drill bit is, how it works, and the main types and materials. Practical guidance for wood, metal, masonry, and DIY projects to improve hole quality and tool life.




Find the best drill bits for metal by comparing carbide, cobalt, and HSS options. Learn how to choose, set speeds, lubricate, and extend bit life.

