Construction Reamer, Morse Taper Shank Shank, Morse Taper 3, Large End Dia. (In.) 13/16, Flute Length (In.) 5, Overall Length (In.) 9-1/2, 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