Left-hand spiral-flute high-speed steel chucking reamers push chips into the hole as they enter a workpiece. They are used for reaming through holes, and they typically leave a finer finish on the hole than right-hand spiral-flute chucking reamers and straight-flute chucking reamers. The reamersa€ bright finish is unaffected when their cutting edges are resharpened. Reamers are used to enlarge a hole to an exact size for a precise fit when installing fasteners or other parts. These high-speed steel reamers have a straight shank that mounts to the chuck of a drill press or similar machining tool. High-speed steel chucking reamers provide good wear resistance in a wide range of reaming applications. These general purpose reamers have a straight shank that mounts to the chuck of a drill press or similar machining tool. Chucking reamers, sometimes called machine reamers, enlarge or finish an existing hole to an exact tolerance or size for a precise fit when installing fasteners or other parts. They usually have a 45° chamfer on the cutting edge to help ensure accuracy as the reamer enters the hole during metalworking tasks. This listing is for each. Technical Specification Item Chucking Reamer Measurement System Metric Reamer Size 12.5mm Decimal Equivalent 0.4921 Shank Type - Machining Straight Shank Dia. 11.06mm Flute Type Spiral Number of Flutes 6 Flute Length 51mm Spiral Direction Left Hand Coolant Fed Non-Coolant Through Overall Length 203mm Material - Machining High Speed Steel Finish - Machining Bright (Uncoated) Cutting Direction - Machining Left Hand Primary Material Application All Materials Primary Material Application ISO Code H, K, M, N, O, P, S Reamer Application Through Hole Size - Decimal 12.5mm - 0.4921
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