Interchangeable drill tip bits

These step drills allow accurate control of hole size in various materials up to 1/8-in. thick. According to the company, each bit handles a range of sizes and drills incrementally larger holes with each step. In addition, the self-starting tip eliminates the need for pilot holes or center punching.

L.H. Dottie

For more information, visit www.lhdottie.com.