Check the listing for details. Indexable Boring Bar Min. Bore: 3/4", Max Depth: 4", Shank: 3/4" USA Made. Condition: New. Listed at 60.00 USD. Indexable Boring Bar, Minimum Bore Diameter= 3/4", Maximum Bore Depth= 4", Shank Diameter= 3/4", Overall Length= 6", 1pc Bar w/Screw and 1pc (TPGH) Insert Included, Made in the USA by APT