Max opening: 600mm. Max throat depth: 120mm. Sliding arm dimension: 28x11mm. Weight: 2.52kg. Hardened; tempered and forged steel sliding arm and jaw with a profile to retain shape and resist distortion which ultimately offers 20 % more clamping force per spindle rotation than others. The spindle is equipped with high quality 2-component plastic handle; threads are special surface-coated for a smooth and bind-less action and the spindle pressure plate is easily replaceable. Comes with a zinc plated finish. Note: See 582344 for optional protective plastic strips for sensitive surfaces.