Yankee 433 Series chucking reamers are suitable for enlarging and accurately finishing drilled holes to precise dimensions. They are used in metal fabrication, automotive, aerospace and manufacturing processes where high accuracy and smooth surface finish are critical. These reamers have a straight-flute design, which efficiently pushes chips forward into a hole while precisely enlarging it for a perfect fit when installing fasteners. They feature high-speed steel construction with bright finish that remains unaffected even after resharpening their cutting edges. These reamers have a straight shank that allows them to be easily mounted onto the chuck of a drill press or similar machining tool.