Standard Pack = 1 piece(s). Distance Across Flats = 5/8 inch ; Insert Inscribe = 1/4 ; Maximum Bore = 1 1/2 inch ; Minimum Bore = 1/2 inch ; Overall Length = 3 1/2 inch ; Right/Left Hand = Right ; Shank Diameter = 3/4 inch ; Type = High Performance Indexable Boring Bars ; Use Insert = TPG-22 ;