3 Pcs Step Drill Bit Set, High-speed Steel Drill bit, Titanium Coated Unibit Step Drill Bit, Two Flute Design Step Drill With Tri-flatted Shank, 1/4\ to 1-3/8\
- HSS 4241: The step drill bit is made of strong HSS for outstanding durability and sharpness along with a titanium coating to ensure strong wear resistance, reduced friction. (For anti-rust, a small amount of rust Inhibitor will be coated with new items.).
- 32 in 3 Drill Bits: Multi-size in one drill bit, holes of different diameters can be processed at one time. Replacing drill bits and loading a Center Hole are not required, efficient and time-saver..
- 118°X Split Point: Unibit step drill bit with 118°X split point improves the cutting speed with self-centering and prevents walking to keep the step drill bit stable boosting the efficiency..
- Stability and Safety: The step drill with tri-flatted shank fits into power tools chuck securely and eliminates slip and is compatible with all kinds of drilling machines. Step visibility is increased with laser engraved numbers..
- Warm Tips: The step drill bit is a great helper to drill holes on Aluminum, Iron, Wood, Plastic material sheets. But Not the best choice for stainless steel, carbon steel, tile..