Before trying these I tried half a dozen Morse brand hole saws. Milwaukee held up much better on steel. If any of these failed, it was due to mandrel thread wear, not dull or broken teeth.
Circular saw Makita HS7601, 1200 W blue/silver
58 Review
Circular saw BOSCH GKS 190, 1400 W blue/silver
44 Review
Vertical router BOSCH POF 1400 ACE 060326C820, 1400 W green
30 Review
Saw BOSCH Keo, 0600861900
41 Review
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
Olson 80 Inch Blade FB14580DB-025