MORSE® Construction Reamer, Threaded, Series: 1650, 5/8 in Dia, 6-5/8 in Overall Length, 0.35199999999999998 in Point, 3-Flat Shank, 1/2 in Shank Dia, 5 Flutes, Left Hand Spiral Flute, 5 in Flute Length, HSS, Black/Silver, Right Hand Cutting, Applicable Materials: Structural Steel