The 100mm jaw sets are designed for an expanded dovetail grip (up to 14inch dia); reverse dovetail grip for gripping footed bowls; limited spigot facility (up to 6inch long) and provision to mount false wooden jaws; so customised jaws can be made for special purposes. They are made for a larger range of work than the standard 50mm jaws or Step Jaws. One of our most popular jaws to mount 12inch-14inch bowls. Can mount false wooden jaws; so customised jaws can be made for special purposes.