The Starrett 120 Series Dial Caliper is the only American-made dial caliper. The caliper is used by mechanics and toolmakers everywhere. Its features include direct reading, ease of handling, reliability, and accuracy making the Starrett 120, 120M Series Dial Calipers one of the handiest measuring tools available. It has sharp, clear dial graduations, black graduations on the satin finished bar, knife-edge contacts for both inside and outside measurements, one-hand use with the thumb-operated, fine adjustment roll, lock screw for dial bezel and lock screw for holding the sliding jaw in position, hardened stainless steel bar, measuring surfaces, rack, gears, and depth rod, positive, split-gear anti-backlash control and covered rack depth rod. This model features a red dial, 0-6" range, and .001" graduations. 6", red dial and fitted plastic case.