Portable Pneumatic Cylinder Spot Welder Gun Copper Frame Tweez Weld. Copper Frame with Aluminum Cylinder and Mounting Bracket.3/4" Wide x 1-1/4" Tips. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Workholding\Clamps\Fixture Clamps". The seller is "arrowindustrialsales" and is located in this country: US. This item can be shipped worldwide.