Dasqua 1-2″ .0001″ Outside Micrometer ~ Accuracy is 0.00015″. ~ Strictly made in accordance with DIN 863. ~ Ratchet stop for constant pressure. ~ Spindle thread is hardened, ground and lapped for ultimate accuracy. ~ Clear graduations laser-etched on a satin chrome finish for easy reading. ~ Spindle lock. ~ Carbide measuring surfaces are ground for longer service life. ~ Standards included. ~ Fitted case.