Hobart 770031 400-Amp T-Style Ground Clamp Brass

I got this specifically to hold items that I needed to put a torch on, but needed maneuverability to get at it from different angles, and it worked fantastically! The clamp itself was nice and tight without being overly difficult to open, and it held the items very securely, which is always a concern when you're working with red hot components. But it more than did the trick, and I was even able to hold the clamp the whole time without needing gloves, so the heat transfer was very minimal. Pretty impressed with the whole thing and would use again for certain. Especially for my specific need for the item. Would recommend!

Seriously, is a ground clamp REALLY that important? Yep, it is. If you've bought a budget 120v buzz box mig welder, replace the likely junk factory ground clamp with this one before you even run the first bead. While having a solid ground is important for all arc welding processes, it's an entire order of magnitude more important for mig welding, and more important still for people new to mig welding. Ever had your settings set right according to the chart, but your wire is stubbing in the puddle and pushing the gun away? The machine doesn't know or care when the ground isn't there and the arc isn't established, it just keeps pushing wire. A poor ground will cause all kinds of problems that can mimic issues with wire feed, voltage, technique, and prep that just aren't there. A poor ground can make you chase settings all over the place and want to pull your hair out when none of those changes help at all. I guarantee that several perfectly good welders have been sold as junk because they ran badly, when all they needed was a better ground clamp. Admittedly, this is essentially the same ground clamp that's available at Harbor Freight. Diamond in the rough, those are actually good clamps, WAY better than what most welders come with. Click click delivered for a buck more than HF is charging, I can't fire up my truck and move it out of the neighborhood for a buck. I love Amazon. One last tip. Trim the insulation off a couple feet of welding cable, so you have bare copper. Double it over and twist it loosely, then clamp that twist of bare welding cable between your ground clamp and work piece.This creates hundreds or thousands of individual ground paths, and does a much better job than just a ground clamp alone. This can help make a mediocre ground clamp usable to finish a project, make a good ground clamp work better in less than optimum situations(you still need to clean down to bright shiny metal!), or even help isolate issues with an existing ground clamp. If you're clamping on bright shiny metal and adding the twist of wire helps, you have issues with your ground clamp.

I replaced a stamped steel with copper teeth ground clamp on my stick welder with this. The clamp force on this is strong and the connection is easy enough to setup. I just wish it had a bolt to use an existing terminal lug so I didn't have to cut my cable. Also the metal loop to hold the cable is cheesy, I used a hose clamp instead, I imagine a zip tie would work even better so you don't risk cutting yourself on the hose clamps strap. It's a great ground clamp!

These are the #1 ground clamp you can get in my opinion trash the crummy one that came with your welder and upgrade to this

I bought this clamp to replace the cheaper clamp on my small harbor freight 240v flux core welder. It’s a little over kill for my welder for sure, almost too big but I will say it makes a difference. The connection is much better and the clamp attaches to work surfaces better. Great clamp for the money but just know it is definitely on the larger side.

This ground clamp is easy to attach but will require a shim of some kind as the screw mechanism does not hold the wire tightly. The contact points have burned slightly after only a few uses. They still make better contact than the factory clamps so the burning may just be cosmetic.

Upgraded my cheap welders ground clamp and now it’s way easier to use. The mouth of this clamp barely opens up enough for a 2.5in exhaust pipe but the clamp is very strong so clamping it to metal plate works also.

Original clamp was junk and bent out of shape after burning only 2 lb of rod. This thing is massive and solid cast metal. Spring is very strong an it hols on well enough to act like a clamp to position the workpiece. Can be a little bulky on small parts unless you have a metal welding table to clamp to. Tapered tips let you slide it inside pipe or tubing I have above average “farmer” hand strength—I can see that folks with lesser hand strength having trouble squeezing it open Electrical connection is very solid. I couldnt figure out how to completely tighten (bend) the strain relief metal band, but I’ll work on it. May replace it with a hose clamp. It hinges on a hollow copper rivet that could possibly wear out, but probably not in my lifertime

Top quality very well made

Good quality. Made for work.

Excellent item

Smaller welders,even the better quality ones,usually need an upgraded ground clamp.This clamp is solid brass,better than the grounds with just a strip of copper wiring between the jaws.It delivers good grounding and its very durable.The spring is strong, high pressure.I put one on my Hobart stickmate LX, a good machine but stock clamp was junk.This is the style you want for an upgrade, you`ll find these on bigger and better machines.

Heavy duty and opens nice and wide. Not your typical cheap ground clamp.