Bessey EKT55 One-Handed Edge Clamp Features a compound screw mechanism Clamps surfaces up to 2-1/8" thick Pressure pads use soft plastic caps for gentle, no-slip clamping Clamp panels from 3/8 inch to 2 inch Prevents materials from slipping No harm to clamped surfaces Provides secure hold while realignment Max: 450-500 lbs. of pressure