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 Makita HS7601, 1200 W blue/silver
58 Review
Vertical router BOSCH POF 1400 ACE 060326C820, 1400 W green
30 Review
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
πͺ DEWALT DW3984C Portable Blade Set of 3-Pack
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
POWERTEC 62-Inch 8-Inch Blade - Model 13132X
12 Review