Lincoln Electric 300 amp work clamp is easy to operate. No bolts or nuts to tighten. 

• Easy operation Just squeeze, slip jaws over the work and let go.

• No bolts or nuts to tighten

• Jaws open full 2-1/2" (63 mm)

• Welding cable lug bolts directly to the work clamp

• Heavy spring tightly clamps jaws to work or table

• Rated 300 amps at 60% duty cycle