Moore & Wright: 331 12"/300mm Outside Fim Joint Calipes A large headed nut and screw assembly provides a firm and rigid friction joint, with no play. Manufactured from polished tool steel. Size - 200mm/ 8inch or 300mm/ 12inch. The sizes listed are the effective leg length which is measured from the joint assembly. This range of external joint calipers are manufactured form polished tool steel. The large headed nut and screw assembly provides a firm and rigid friction joint, with no play. The sizes in the range are the effective leg length which is measured from the joint assembly. Features and Benefits Manufactured from high quality, polished tool steel Large headed nut and screw assembly for a firm and rigid friction joint BS3123 Typical Applications Measuring outside diameters and thicknesses of various objects MPN: 33112R EAN: 5051102247690 331 12"/300mm Outside Fim Joint Calipes Attributes: MFR Part No.: 33112 Measurement Range: 0 - 300mm Measures: External System of Measurement: