Standard Pack = 1 piece(s). Tube No=20; Tube Size=1.25; Thread Size=1 5/8-12; Diameter Reamer=1.55; Diameter Spotface=2.31; Diameter Shank=1; Length Shank=2.25; Length Reamer=1.121; Length Head=2.25; Length Overall=4.5; Diameter Shank Decimal=1; Diameter Shank No (0) 3 Decimal Places=1; Length Overall Decimal=4.5;