Construction Reamer, Straight Shank With Safety Collar Shank, Large End Dia. (In.) 1-1/16, Shank Dia. (In.) 1/2, Flute Length (In.) 5-1/8, Overall Length (In.) 7-1/4, Left Sprial Right Cutting, High Speed Steel, Bright Finish, Reaming, True, Enlarge, Align and Debur Holes In Structural Steel Members Such As I-Beams, Angles, Channels And Plates