Digital Caliper Product Description: Specifications: 1) Measuring range: 0-100mm (0-4") 0-150mm (0-6") 0-200mm (0-8") 0-300mm (0-12") 0-500mm(0-20") 0-600mm(0-24") 0-800mm(0-32") 0-1000mm(0-40") 0-1500mm(0-60") 0-2000mm(0-80") Gradustion: 0.01mm(0.0005") Stainless steel material manufacture, Each kind of specification all has. Good price and good quality. Welcome to select and purchase