>>64109711
4x4Machine is the one I recommend because it's cheap (was $65), extremely robust and very powerful. But the original guy stopped making them I guess, all you can find are chinese copies on ebay and amazon now. But they're half what he charged and I don't see how chinks could fuck up a yuge chunk of 6000 series aluminum. No experience with the copies but the design (pre-chineseum materials) is very solid. No affiliation or experience with these exact units
https://www.amazon.com/dp/B07H9P7HYR
https://www.amazon.com/dp/B094GR7819
$19 yeesh that price skeezes me out
https://www.ebay.com/itm/396696459364