- HIGH PERFORMANCE: Optimized for portable drill users, works well on curved and metal surfaces
- PRECISION CONTROL: Faster starts with TURBOMAX feature-point tip that eliminates walking
- CORROSION RESISTANCE: Black and gold oxide coating prevents corrosion for longer bit life
![Irwin® Turbomax 3/8" Reduced Shank HSS Drill Bits, 7/16", #IR-73628ZR (3/Pkg) Irwin® Turbomax 3/8" Reduced Shank HSS Drill Bits, 7/16", #IR-73628ZR (3/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/256328/449935/73628ZR__01438.1669759502.jpg?c=2)