Not sure but seems Petzl uses a cheap thin aluminum w stamp mill production ... CMI use thick blocks of aircraft grade and conventionally mills the shape.
Kong and Petzl don't get my money or trust , though a fine French family name I have gotten rid of all my Petzl gear except a helmet (and one Carabiner I keep around). CMI is how how I roll. If you're screwed I have an extra CMI left ankle I never use if you're in need.
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