This is a replacement handle for a Wilton 1750 Tradesman vise. I made it from a 5/8 mild steel rod and 1" diameter bearing balls. They were TIG welded together using 410 stainless filler rod. Note that use of the filler rod was dictated by what I had, I am not saying that it is the best filler rod for this application. Since obviously this vise handle is not a critical weld, all that matters is that "the balls do not fall of under normal use" (pun intended).