3/4 X 2-1/2 X 9-1/2″ 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 2-1/2″. ~ Overall length is 9-1/2″. ~ Shank size is 0.6245-0.6230″. ANSI standard. High speed steel Straight flute. 45 degree chamfer allows gradual starting load. Suitable for production reaming of most materials.