Mutt Tools 30° Sheet Metal Notcher for HVAC - Professional V Notcher with Spring-Loaded Design - Heavy-Duty Corner Cutter for Ductwork - Precision Steel Tool with Safety Lock

Works as expected. Plenty heavy duty for intended purpose.

Worked out of the box. Perfect depth of cut for folding roof sheets. Takes out 4 of the steps per sheet,no measuring needed.

On the first use, this cut a notch from copper sheet metal, but on second and subsequent use it did not cut a clean notch, as you can see in the photo. The lock is very easy to undo and didn't feel the most secure. It could be intended for use on harder metals only, but this is not clear in the description. The handle was comfortable as advertised, though!

Works as described. I love my malco tools but this had a Way better price than malco so I went with it.

Heavy enough to hold up well, makes very nice notches, saves a lot of time.

Bought these as an alternative to Malco for a toll bag for the new guys cause they’re always loosing tools when they first start. They’re halfway decent they do what they need to but it takes more time to get them into the metal due to the small gap between the notching tooth and the support jaw. Malco is definitely the better option I spend much less time trying to get the tool onto the metal and they last longer. These will definitely work in a pinch but overall just aggravating trying to use them constantly doing commercial hvac

Got these to notch 20 gauge sheet metal to build wheel arch patch panels. Worked good but I wouldn't want to try anything thicker. It takes some real effort to get through 20 gauge steel. Still faster than using snips and it yields a nice uniform cut.Overall I am pleased.

This tool although it feels good is not it wont cut sheet metal as described maybe aluminum I will be sending it back for a refund.