Qualtech Shell Reamer Arbor, Straight Flute, Arbor Number: #7, 1-5/16 in Minimum Shell Reamer dia, 1-21/32 in Maximum Shell Reamer dia, Straight Shank, 7/8 in Shank dia, 11 in Overall Length Qualtech DWRSRA7SS Straight Flute Shell Reamer Arbor, #7, 1-5/16 in dia Min, 1-21/32 in dia Max, 7/8 in dia Straight Shank