The IRWIN® Quick-Grip® Micro Clamps feature a patented ratcheting mechanism that provides variable clamping pressure. The quick-release trigger allows for fast and easy positioning and release, making this the ideal clamp for jobs in the workshop, house and garden. They have specially designed jaws with non-marking pads that can hold onto odd-shaped work pieces. Enhance your clamps with a wide range of Quick-Grip® Clamp Accessories.Additional Information:Capacity (mm): 100Clamping Force (kg): 18