Originally made for electrical and plumbing work, Diablo’s step drill bits are incredibly useful for anyone working with or making repairs in metal and plastic.

Sharpening Your Specialty Drill Bit To sharpen the step bit, you can use a cone-shaped grinding bit with a Dremel. You should work on the smaller of the two faces inside the notch of the step bit.

Step drill bits offer the advantage of fast, clean precision drilling into thin metals without changing bits. Each of this set of three cobalt step drill bits is designed and engineered to drill ...

The new Greenlee GSB Series Step Bits are manufactured in the United States and feature an improved split-point tip for even faster penetration and a patented split-step design to optimize chip load ...