Milwaukee sponsored video in which Roger thoroughly tests the range of Sawzall reciprocating blades by cutting through tough thick metals.
Milwaukee blades tested include:
Thick Metal Heavy Duty Torch Blade with Carbide Teeth
The AX Heavy Duty Demolition Blade
The Torch Blade
https://uk.milwaukeetool.eu/accessories/sawing-and-cutting/reciprocating-sawzall-blades-1/