Magnetic ground clamps?

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Anybody use them? I was looking at them, and ran across this one.http://www.stronghandtools.com/stron.../powerbase.php Looks like it has one of smallest footprints of the others I've seen. Rated to 300a, but I won't be anywhere near that.
Reply:We got some TWECO'S. Work well. The 300 amp has greater holding power.The 200 doesn't hold as well.http://www.amazon.com/Magswitch-Grou...d_sim_sbs_hi_2http://www.amazon.com/Magswitch-Grou...d_sim_sbs_hi_1Last edited by BD1; 07-01-2013 at 10:51 PM.
Reply:$65.00 is a bit much for a ground clamp.miller thunderbolt 250vlincoln square wave tig 175 prolincoln idealarc mig sp250everlast tig 210EXTeverlast power plasma 50chicago electric (hf) 130 tig/90 arcchicago electric 90 amp flux wire3 sets oxy/acet
Reply:The Tweco 300 amp, strong hold 120 pounds. $37.00 at amazon.
Reply:I've got the magswitch 200 amp one.  I like it.  It's much more convenient than a clamp.  Only trouble I have is when welding stainless.  No biggie, just put a vise grip on the stainless and stick the ground to that.http://weldingweb.com/vbb/showthread.php?t=83551My name's not Jim....
Reply:I have three  of the magswitchs they make things a lot easier.  The right angle one gets a lot of use.
Reply:Yeah if they can make one that will stick to aluminum and stainless I'd probably buy it.Lincoln precision TIG 275Millermatic 140 MIG