These heavy-duty clamps feature electroplated steel jaws and solid copper jaws & straps for maximum performance. The sturdy construction makes them a natural replacement for light-duty OEM clamps or when designing your own cable assembly. 300 Amp Clamp or 500 Amp clamp Sold individually - one per package Ground / Earth Clamps 300 - 500 Amp groundclamps Ground Clamp 300 Amp Heavy-DutyAnnodized, spring loaded, steel ground clamp with copper strap connecting both jaws for improved current flow. Rated at 300 amps for Mig, Tig, Plasma or stick welding systems. Availability: Usually ships the same business day Ground Clamp 300 Amp Heavy-Duty 513N0003Elsewhere: $ 12.50Welding-Direct Price Clamp 500 Amp Heavy-Duty / #1AWG - 3/0AWG CableAnnodized, spring loaded, steel clamp with heavy braided copper strap connecting both jaws. Copper gripping pads on each jaw. Rated at 500 amps, suitable for Mig, Tig, Plasma or Stick welding systems. Availability: Usually ships the same business day. Clamp 500 Amp Heavy-Duty / #1AWG - 3/0AWG Cable 513N0004Elsewhere: $ 14.30Welding-Direct Price Additional discounts may be available for volume orders. To speak with a customer service representative for details, call, toll free, 1-866-568-3170 . Welding-Direct.com is in no way affiliated with the above named manufacturers. References to named machines, torches, welding guns and numbers is for your convenience only. Most parts advertised for sale are made by or for Welding-Direct.com; other parts, as indicated, are original parts (OEM) and are simply being resold by welding-direct.com. Copyright 2004 Welding-Direct.com. All rights reserved. Details on our Free Delivery policy may be found on our Information page.