pMorse Construction Reamer, Threaded, Series 1650, 1516 in Dia, 714 in Overall Length, 064500000000000002 in Point, 3Flat Shank, 12 in Shank Dia, 5 Flutes, Left Hand Spiral Flute, 558 in Flute Length, HSS, BlackSilver, Right Hand Cutting, Applicable Materials Structural Steelp