From the Manufacturer
These steel I-Bar clamps are made of extra carbon and manganese to withstand industry, schools and home craftsmen use. Multiple disc clutch grips automatically at any point. Secure hold and grip with easy release.
Product Description
Heavy duty design makes these the most popular edge gluing steel bar clamps for the professional woodworker. Sytle 7200 bar clamps have 2 x 1 3/4 clamping faces. The I bar design gives visible assurance of great strength and stiffness. Style 7200 has a fixed head design. The fixed head is designed to accomodate the screw. The screws and handles are used for final clamping adjustments only. Five clutch discs and one clutch spring constitute the Multiple-Disc-Clutch.