When turning long and thin projects it's a great advantage to be able to grip a blank along a substantial amount of its length to impart a good measure of stability to the workpiece. To overcome this problem we have designed these Cylinder Jaws a 50mm diameter by 43mm long bore to accommodate a range of workpiece diameters. In addition, because we are always loath to provide you with jaws which perform only one function, we have added internal and external dovetails on the ends. Suitable for SK100 and SK114 chucks only. As with all our dovetail jaws they simply bolt onto the Accessory Mounting Jaws.