OIY1436 Features: * Micrometer depth gage * Depths of holes, slots, shoulders and projections can be measured with these fine tools * Non-rotating blade: blade does not turn, but moves perpendicularly only * Combination ratchet and speeder for uniform pressure and quicker adjustment * Ring-type knurled lock nut for quick and sure locking * Micrometer Type: Mechanical * Range (in) 0-3"" * Graduations: .001"" * Lock Nut Type: Plain * Measuring Rods: 3 * Rod Diameter: .045x1/8"" * Thimble Type: Ratchet * Case Type: Padded Case * Accuracy: Mic head +/-.0001""; Rods +/-.0002"" Dimensions: * Base Length: 2-1/2""