Light duty (TG & TGJ) malleable cast bar clamps with wood handle. The rail's hourglass profile contributes to the TG series ability to resist flex. Even the light duty version is a tough tool built with the quality you expect. Maximum safety is available with the integrated anti-slip system. A set screw that is molded into the sliding arm interlocks with the serration on the rail to prevent the clamp from slipping. Corrugated malleable cast iron fixed jaw and sliding arm generate powerful, rigid clamping. Top jaw is press fitted to the rail. The high quality profiled rail from Bessey's own German steel plant has been optimized for clamps. The profile acts as a reliable reinforcement against torsional forces, while the serration on six faces additional prevents the clamp from slipping. The smooth running spindle with Acme thread allows for more clamping with less effort. Replaceable pressure plates can be easily changed without tools. 0-24'' Bar Clamp.