This is the best I could come-up with for a quick project today. I got tired of using a 14" adjustable wrench on a ER32 chuck and made this special Terminator T-1000 unit.
The jaws are made of 4340. The handle is some 3/8" 316 SS rod left over from another project. Everything was tig welded then, the 4340 jaws were heated red with a torch, quenched, then tempered a little. The ergonomics feel good and it's very sturdy. I don't think any amount of human force could splay the jaws.
View attachment 266233View attachment 266231View attachment 266232
I'm going to make one for the ER40 chuck too.
Ray