Detail: Manufactured from high tensile, malleable cast iron, with an attractive grey hammertone finish, these are very useful for holding workpieces securely for smooth and even turning. Description • Used in conjunction with a catch-plate, these act as a driving device while turning material between centres.• A 'V' groove in the body helps clamping of round jobs. Holding Capacity inch mm 1/4 6 3/8 10 1/2 13 3/4 20 CONTACT US