I BAR CLAMP 6 FT OPENING 1-13/16"" THROAT DEPTH 1-7/8"" CLAMP FACE FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" A RAPID ACTING POWERFUL CLAMP DESIGNED AND CONSTRUCTED FOR HARD EVERYDAY PRODUCTION WORK QUICK ACTION NO SLIP CLUTCHES ARE 3/4"" APART AND FORMED IN THE WEB FOR GREATER BAR STRENGTH HIGH STRENGTH DUCTILE SLIDE CANNOT SLIPO OR BIND; EASILY RELEASED