Dasqua 0-25mm/0-1" Digital Outside Micrometer Accuracy is 0.00012"/0.003mm. Resolution is .0005"/0.001mm. Spindle is ground twice reducing pitch error to less than 1" surpassing previous standards and reaching world-class precision. New special carbide used on measuring anvil ensuring prolonged durability instead of traditional easy-wear off carbide tip. Integration of stainless steel on the spindle instead of carbon steel, offering enhanced strength and corrosion resistance. Ratchet stop mechanism to maintain a constant force of 5- 8N which is 20% higher than standard models.