I bought some aluminum a/c fittings from cold hose and crimped them using this tool. It made my work a lot easier.
The hydraulic pump is strong, easy to crimp down hard without hurting your hands. Came with all of the dies as listed.
I was hesitant if this would be a pro tool or just a piece of junk. It is good quality and works well! I doubt I would count on this for daily use in an AC shop but for occasional use it really makes perfect crimps. It saved me getting the vehicle to a shop that could do the crimps as the lines could not be removed on this 22yo conversion van. Worked first time and seems like it will for the future. I have been a tech for 30 years and used many crimpers over that time, this works as well as any I have used.
I just had a few hoses to cut and crimp, spent about as much on the tool as I would have taking them somewhere to get them crimped. First time doing this and I think they came out great. I have not yet pressurized the system so I can not speak to any leaks, but they look solid.