- Revolutionary tip design stays sharper longer and drills up to 10x faster than other leading drill bits
- Three-flatted shank design provides better chuck grip and reduces slippage
- Ideal for use in keyless chucks
- Bit is constructed of M-2 high speed steel for the best combination of strength, heat resistance, and wear resistance
- 3/8" reduced shank fits all 3/8" drills
![Irwin® Turbomax 3/8" Reduced Shank High Speed Steel Drill Bits, 27/64", #IR-73627ZR (3/Pkg) Irwin® Turbomax 3/8" Reduced Shank High Speed Steel Drill Bits, 27/64", #IR-73627ZR (3/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/257074/449930/63104__66339.1669758796.jpg?c=2)