Standard Pack = 1 piece(s). Distance Across Flats = 7/16 IN ; Insert Inscribe = 1/4 ; Maximum Bore = 3 IN ; Minimum Bore = 5/8 IN ; Overall Length = 4 1/2 IN ; Right/Left Hand = Right ; Shank Diameter = 1/2 IN ; Type = High Performance Indexable Boring Bars ; Use Insert = TPG-22 ;