Yankee Chucking Reamer, High Speed Steel, Bright (Uncoated), Straight, Fractional Inch, 3/8 in

These high-speed steel chucking reamers come in standard sizes expressed in fractional inches. Fractional inch is the most common trade size used for chucking reamers. Straight-flute reamers push chips forward into a hole as they enlarge it to an exact size for a precise fit when installing fasteners or other parts. They are the most commonly used style of reamer. These chucking reamers are made from high-speed steel and have a bright finish that is unaffected when their cutting edges are resharpened. The reamers' straight shank mounts to the chuck of a drill press or similar machining tool.