Fowler Digit Counter Outside Micrometer Featuring clear, easy to read numbers on a digital counter, Fowler's digit counter micrometers are an economical, fast and easy-to-use addition to the machinist's tool chest, the shop floor or in the QC area. Features Include... 2-3" Measuring Range 0.0001" Graduation + 0.00016" Accuracy Digital counter reads to .001" Microfine graduations on satin chrome Carbide-tipped measuring faces Positive locking nut on spindle Ratchet Thimble Includes shop-hardened case.