Manufactured from close-grained grey cast iron, these European made vices will give you a long and trouble free service. Accurate machining guarantees a smooth movement. The 24mm steel main screw has a trapezoidal thread for smooth adjustment. Twin solid steel guide rods ensure a parallel action, free of play or deflection. The jaws have a very slight "toe-in" feature; on closing they meet at the top first. As you tighten the vice this feature ensures even clamping over the whole depth of the workpiece. The jaws have provision for attaching wooden liners to protect the vice, workpiece and tools.