... . Size:7/16" to 2",8mm-30mm. Tolerance: H7,H8. Bridge Reamers.High Speed SteelTaper Shank, Long Body.Straight flute or ... designed for use in structural steel, in the building industry, bridge erection, and ship construction. The cutting end of the flutes ... holes but also permits insertion into very badly misaligned holes. Bridge Reamers are commonly used in portable electric or pneumatic machines ...