Every lug supplier has different specs. The wall thickness varies from company to company, as well as style, and so do the dimensions of the crimping dies, square or hexagonal.
How the wall thickness can vary.
For the cable setups I've made and the ones I will make for a video, I use products from Quick Cable. But I also use FTZ lugs, depending on the situation. Sometimes their lugs are a better fit for the application. If you've followed any of my videos on electrical, it's not a subject I take lightly. I can't pull any images as I'm reloading my MAC dedicated to the Powerstroke for about the 50th time.
This is one of the best sites for the subject; I have two of the crimpers he mentions; FTZ 94284, AMP Rota-Crimp 600850 (which would be insane to buy today, it's triple the price), and one from Ancor.
Pick Your Crimp Tool FTZ 94284 & Ancor Hammer Crimper TEMCO TH0005 & FTZ Bench Mount BUY FTZ 94284 CRIMP TOOL - BAY MARINE
marinehowto.com
As in their site, I've tried the hydraulic crimpers and don't care for them. I've not tried the new battery-powered crimpers used in solar applications.
This video says they have a good crimp; they don't, but it's close. It should look like solid copper.