Review on Enhance Efficiency with Performance Tool M620 4Pc Chisel Set by Carl Morgan

I have not used this spring tool holder. But with my 20-year-old B&D air hammer, the bracket is very tight. So tight that the short end snapped off very easily when I placed 2 Pr Vice Grips on it to expand and "screw" it to the air hammer. So I simply "screwed" the bracket up to the air hammer with a pipe wrench. Because what should have been spring steel broke so easily - I'm concerned about the quality of this retaining spring and whether it will hold and hold tools during a hammer blow. Luckily the broken end doesn't affect this holder's ability to properly hold the drill etc.