Dasqua 0-300mm/0-12″ Digital Depth Caliper Used to measure step and depth. Resolution sis 0.01mm/0.0005″.Accuracy is +/-0.03mm. Made of solid stainless steel that has been widened and thickened.Large, easy to read display. Hardened, ground and lapped measuring surfaces for longer service lift. Strictly made in accordance with DIN862.