SET SPECIFICATION: The cylinder honing kit includes: 1pc 1-1/8" hone with 2 claws, 1pc 1-1/8" hone with 3 claws, 1pc 2" hone with 3 claws, and 1pc 3" hone with 3 claws. By turning the screw clockwise or counterclockwise, the user can increase or decrease the tension of the spring-loaded arms that grasp the honing stones.