This Bessey EHKL12 Trigger Clamp is a versatile tool for holding materials together. It has a one handed clamping or spreading mechanism that can be operated with just one hand. The handle is made of composite plastic, making it lightweight and comfortable to use. This trigger clamp features a steel bar and 12 in. capacity. Its throat depth is 3 1/8 in., while its spreading range is 12 in.. The Bessey Trigger Clamp gives you the strength you need to hold material together for a variety of projects.