HHIP 5/32 X 1 X 4" High Speed Steel Straight Shank Chucking Reamer ~ High speed steel ~ ANSI standard. ~ Straight flute. ~ 45 degree chamfer allows gradual starting load. ~ Suitable for production reaming of most materials. ~ Flute length is 1". ~ Overall length is 4". ~ Shank diameter is 0.1510-0.1500".