Things You Need To Know About Drill Bits - Drill Bits USA Drill bits are cutting tools used to create cylindrical holes. These small bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for holes that are non-cylindrical. For more information, visit drillbitsusa.com/ in Public bookmarkswith drill-bitsdrill-bits-usa