For holding articles to be drilled. Equipped with slots for bolting to a drill press worktable. Quick release feature permits rapid opening and closure of the jaws. All aluminum construction. Jaws are 2 9/16" wide (65 mm) x 1 5/64" high (27 mm). Overall dimensions are 5 1/4" long x 4 1/2" wide excluding the handle. Made in China.