For precise measurements of diameter / thickness. Semi-circular, nickel-plated brass body, with ratchet top arrangement and friction stop. Oxidized threaded steel rod that provides smooth movement. With zero adjustment screw. Supplied in a suitable cardboard / plastic case for convenient storage. 

INCH10006/1     Size 0-10 × 1/100mm

INCH10006/2     Size 0-15 × 1/100mm

INCH10006/3     Size 0-20 × 1/100mm

INCH10006/4     Size 0-25 × 1/100mm