Starrett’s S191 Jack Screw Set is a 6-piece set of jack screws that can be used for leveling work and general tool room use. This precision measuring accessory is designed to help you level your work and perform general tool room tasks. The jack screw set features a 1-1/2" to 2-1/4" diameter, with each piece measuring 3-3/4" in height. For professionals who need to quickly get their work done, the Starrett S191 Jack Screw Set is a great choice.
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