Countersinks Center Reamer Number of Pieces 1 Number of Flutes 3 Included Angle (Deg.) 60 Cutting Capacity (In.) 3/8 Body Dia (In.) 3/8 Shank Dia (In.) 1/4 Shank Length (In.) 7/8 Overall Length (In.) 1-3/4 High Speed Steel TiN Finish Versatile Tools Designed for Countersinking Holes for Centers or for Enlarging Existing Holes Sizes Included N/A