Alu-Pro Spanners are used once the canvas has been attached to the frame and stretched. They fulfil the function of a Canvas Key; that is, they are used to extend the Alu-Pro frame at the corners in order to tighten a canvas which has sagged slightly. They are fastened with a nut and bolt mechanism.
Please note, you will need a 4mm Allen key to use this product.
For more information about Alu-Pro products and an assembly tutorial featuring this product, see the Alu-Pro product showcase on the Jackson's Blog.
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|To use with||Oil, Acrylic|
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