The Crescent Connect Modular Clamp System offers a lot of clamping versatility. Each clamp has 500 pounds of holding power, 60% more than similar clamps, according to the manufacturer. The key is the connecting accessory (sold separately) that allows you to connect the clamps to one another in order to use them at unusual rotations or angles. The head of each clamp can be flipped and used as a spreader and the protective rubber pads are removable, revealing an area that can clamp onto a pipe or other round object.
Price: $40 for two 12-inch clamps, $6 for connecting accessory; set of two 6-inch clamps is $35 / COO: China / 800.688.8949 / connectclamps.crescenttool.com