Construction Reamer, Flute Type Spiral, Spiral Direction Left Hand, Cutting Direction Right Hand, High Speed Steel, Dimension Type Fractional Inch, Decimal Equivalent 1.3750 In., Size 1-3/8 In., Number of Flutes 5, Flute Length 5-3/8 In., Overall Length 7-1/2 In., Bright Finish, Chamfer 60 Degrees , Large End Dia. 1-3/8 In., Shank Type Straight with Safety Collar, Shank Size 1/2 In.