American-made dial caliper that's handy for mechanics and toolmakers everywhere 1-hand use with the thumb-operated fine adjustment roll Hardened stainless steel bar, measuring surfaces, rack, gears, and depth rod; sharp black bar graduations on a no-glare satin finish Knife-edge contacts for inside and outside measurements; includes case 6-inches long; weighs 11.2 ounces shipped, Manufacturer: Starrett