Construction Reamer, Hex Nut Shank Shank, Large End Dia. (In.) 15/16, Shank Dia. (In.) 1-7/16, Flute Length (In.) 7-3/8, Overall Length (In.) 9-3/8, Left Sprial Right Cutting, High Speed Steel, Black Oxide Finish, Reaming, True, Enlarge, Align and Debur Holes In Structural Steel Members Such As I-Beams, Angles, Channels And Plates