Hold magnetic workpieces in place with these clamps.

100- and 325-lbs. maximum pull clamps have a handle for extra leverage to remove the clamp from a surface.

Copper-plated clamps won’t scratch steel surfaces. The plating prevents weld spatter from sticking to the clamp, so sharp spatter won’t cut the user or their workpiece.

Two clamps connected by a pivoting arm hold workpieces at nearly any angle.

Sized for small parts and tight spaces, these clamps have a pivoting pad at each end to hold workpieces at any angle up to 180°.

Each arm has a handle for turning the magnets on and off. Adjust these clamps to hold at any angle from 28° to 270° and lock the arms in place at the joint.

Hold and align up to three workpieces at 90° angles.

Clamp workpieces from the outside at a 90° angle, leaving the inside free for welding or fabrication. You can also clamp on the inside at 45° and 90°.

Hold pipe and fittings together for tack welding. These clamps can be used to join or weld two pipes of similar or different diameters, or they can be used to join a pipe to a flange. With a rugged build, they’re designed for use with heavy pipe.

External clamps work well when you can’t access the inside of your pipe. However, you may need to rotate them during welding to move them out of the way.

Internal clamps don’t obstruct joining or welding, making the process faster and simpler. One side of these two-part clamps expands with a knob while the other expands with a hand bar, so you can set them at different diameters to join pipe and flanges of varying sizes.

Clamps with thumb screws hold fittings or flanges at three separate points—adjust them manually to center the two pieces being joined.

Self-centering clamps consist of two clamps that share a center line even as you attach each to a different piece of pipe, so the pipes stay aligned with no manual adjustment needed.

The open clamp design permits welding around almost the entire pipe circumference. Secure components with chains and tighten the handles.

Aluminum clamps are lighter in weight than iron clamps. Iron clamps are more durable than aluminum.

Straight clamps are for use with two lengths of straight pipe and with reducers. Flange clamp is for flanges and straight pipe. Adjustable clamp is for use with straight pipe, elbows, tees, reducers, and risers. It pivots on a hinge to hold components at any angle from 90° to 180°.