Mitutoyo 129-132, 0 - 6" X .001" Depth Micrometer, 4" Base Go to amazon.com Related posts 9 best depth gauge mitutoyo FeatureInterchangeable rods with lapped measuring facesMeasuring rods are adjustable to compensate for wearSatin chrome finishRatchet stop. Rod Qty: 6Supplied in fitted plastic case DescriptionMitutoyo Depth Micrometer, Range: 0 - 6", Graduations: .001", Thimble: Ratchet, Base: 4"