50Pack T123X Jigsaw Blades Set, HSS 4-Inch 21-10TPI T-Shank Contractor Straight Metal Cutting Jig Saw Blade Designed Multi-purpose for Thin Metal, Pipes, Metal Profiles, Sheet Metal

As a contractor who has to cut steel pipes everyday, I was looking for an alternative to the expensive name brand blades. The first day after receiving these blades, I used 10 of them before I switched back to an old Bosch blade. Although the Bosch was worn, it did its job. If your job depends on getting the work done, then stay away from these blades. They are worthless! After returning home, I threw the entire container of blades into my metal recycling bin. That's where they belong.

I cut a lot of tin with my jigsaw and break blades regularly. Now I won't fret - just grab another and keep on... Odd thing is that since I installed the first blade, it hasn't broken. Soon, I'm sure...

Crap. Don't buy