That’s a nice ground clamp. I have one on my titanium multiprocess welder. I also bought some 6 guage 25 feet jumper cables. They made great leads. Nice and flexible.
As a rule of thumb. For every 10 feet of lead go up one wire size. My cheap Chinese welder my kids bought me 10 years ago came with 10 feet leads. They were 10 guage wire. My best mate works at our local airport. Federal law mandates that all ground to aircraft service leads, what powers the airplane while the engines are not running, have to be replaced every 2 years. He got me a 40 feet long power cord that was 4 guage. Since 4 guage has the ampacity for 60 amps it is 4 steps above 10 guage. I made leads out of it as it was. I also made a 20 feet set out of 8 guage jumper cables. In all reality I never use the 40 feet leads. They have been coiled up hanging on my cart for probably for 7 or 8 years. The 20 feet leads get used a bunch though. So if you start out with 10 feet long 10 guage leads and you want 20 feet leads use 8 guage wire. 30 feet use 6 guage ect ect. Just a suggestion from 35 years of experience. I see 20 feet lead extensions that are the same guage with twist connectors all the time though. I often wondered if they get much voltage and amperage drop though. I know 5 or 6 years ago, the same friend, snapped the frame on his Chevy S10 4 wd. I repaired it and had no issues with voltage drop. It was the last time I used my 40 feet leads. I welded two 3/8 s patches over the break. Each were 18 inches long. Then I welded the frame itself where I could not reinforce it. It’s a 99 s10. He’s still driving it, the welds have not broken. We still go through some rough terrain in it. So I guess it works.
