Qualtech Bridge Reamer, Series: DWRRB, Imperial Reamer Size Measurement System, 1/2 in dia, 5-7/8 in Overall Length, 5/16 in Point, Tapered Point, Round Shank, 1/2 in Shank dia, Straight Flute, 4 in Flute Length, HSS, Bright, Applicable Materials: Structural Iron or Steel Qualtech DWRRBSS1/2 Bridge Reamer, Imperial, 1/2 in dia x 5-7/8 in L, 1/2 in dia Round Shank, Straight Flute