These are some of the best hole saws available on the market. Don't drill too fast, be sure to use cutting fluid and these things will work perfectly.
Circular saw BOSCH GKS 190, 1400 W blue/silver
44 Review
Impact drill BOSCH GSB 13 RE (0 601 217 100), 600 W blue
37 Review
Sawing machine DeWALT DWE7485, 1850 W
52 Review
Circular saw Makita HS7601, 1200 W blue/silver
58 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review
Olson 80 Inch Blade FB14580DB-025
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
Chest freezer Biryusa 155KX, white
16 Review