- 4/6 variable pitch teeth for reduced noise and improved performance
- Bi-metal construction for toughness and long life
- Clearly printed hole saw Sizes for quick retrieval and added productivity
- Contains the most commonly used sizes for Plumbers, electricians and general applications
- Super hard steel Rc 65-66 for increased life
![Irwin® Bi-Metal General Purpose Hole Saws Sets, 5/8"- 3", With Case, #IR-3073004 (1/Pkg) Irwin® Bi-Metal General Purpose Hole Saws Sets, 5/8"- 3", With Case, #IR-3073004 (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/260374/365235/585-3073004__91119.1595419367.jpg?c=2)