Steel Fence Straining Clamp Suitable For - 1.5 Metre High Fencing Strainer clamps are used for straining stock / sheep fencing. These use a simple hammer in wedge design for quick and easy use. The fencing is simply held onto the clamp using the wedges and can then be strained to the desired tension for attaching to the post. We Supply A Huge Variety Of Fencing Equipment And Landscaping Tools. FREE DELIVERY Product Code - SFSS1.52