20G747 High-Speed Steel Chucking Reamers with Straight Shank

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Wire-size high-speed steel chucking reamers come in standard sizes that correspond to American Wire Gauge (AWG) sizes. This ensure compatibility when inserting a wire of the same wire size into the hole created by the tool. The larger the wire size, the smaller the reamer. 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.