Manual flat grip clamp for tensile testers, Catalog No. 508471, suits thin materials with high or low elongation such as paper, textiles, leather, and metals. Steel clamp is 6 3/4 in. long and weighs 6.8 lb. Maximum opening is 1/4 in. and clamp anvils are 1 x 1, 2 x 2, and 2 x 3 in. interchangeable plus 2 x 3 in. stationary plain, flat.