High-speed Steel Bridge Reamer - Bridge reamers are installed in a compatible power tool to enlarge, debur, and finish holes in structural materials to a specific size. The reamers have tapered flutes that ease the tool's entry into rough-cut or misaligned holes.Straight Shank with a - These bridge reamers have a straight shank with a that prevents the reamer from going too into the workpiece during reaming operations.Spiral Flutes - Reamers with spiral flutes are a good choice for materials that are difficult to ream, such as high-carbon steel and cast iron, also create a fine finish and the chance of breakage because they move chips forward, which prevents the chips from packing into the flutes.M2 Heavy Duty Construction Reamer - Construction alignment reamers are designed for reaming difficult-to-machine materials such as iron and structural steel in metalworking applications where extreme is not required.Widely Application - Bridge car alignment reamers are used to ream rivet holes in parts for automobiles, bridges, rail cars, ships, and vessels. Specially used in structural materials such as steel, metal, alloy, aluminum, brass, plastic, iron, nickel, copper, cast iron etc.