Hex Shank Chamfer Tool Cutter Chamfering Countersink Drill Bit for Wood Plastic Openings Excellent punching functionStandard countersink drill bit helps a quick drill and makes dont slip in drill chucks.all sharp corners have a 90 angle for sharp and precise countersinking,five-blade chamfering with a groove, easier to discharge debris. Widely usedGreat for wood openings, reaming, chamfering, screw head and so on.suitable for wooden planks, plywood, fiberboard, particle board, plastic, PVC board and other various soft material chamfer. Premium QualityThe hex shank countersink cutting tools are made of standard high speed steel. With high-frequency quenching for heat treatment, the countersink bits have high hardness and toughness. Coated by titanium, the chamfer cutter kit is rustproof and has a long service life. color: grey Size: 12mm, 16mm, 19mm, Shank Diameter: 6.35mm Quantity: 3pcs Kind tips: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.