high tensile extruded aluminium quick trigger clamp that is suitable for 38mm to 51mm diameter tubes. It has a WLL of 100Kg and is 30mm wide factory, fitted with a 29mm Spigot receiver designed to accept a 28mm diameter spigot. Supplied with lynch pin for secondary locking allowing 360 degree rotation, this clamp is designed predominantly for use in the TV/Film industry and is often used with Drop Arms and Pantographs.