Check the listing for details. Millwright Shaft Alignment Tool. Condition: New. Listed at 350.00 USD. Millwright shaft alignment gigs/tools, fits a maximum 4" shaft and a minimum 5/8" shaft. Rods expand from 4" to 7 1/2". Tension screw that holds teleascoping rods in hole are allen head 3/16. The all thread posts are 5/16-18tpi so you can change the length if so desires. Indictor mounting rods are 5/16(0.3125). Made out of 6061 aluminum for light weight yet strong. Very little to no sag!!! NO INDICATORS OR KNUCKLES INCLUDED!!!! NO CASE!!!!! *Due to supply issues there may be slight variations from pictured product but end product will be true to measurements, sizes, and functions specified in listing. ** Pictures of the exact set being shipped to you can be provided if requested in a timely manner before we ship them. ***We ship within 1-2 business day.