Hereby Introducing to You: A 18PCS Silver Colour Set of Cemented/Carbide/Carbon Tungsten High-Speed Steel with Long Round Shank Forstner Wood Drill Punching Bits. This set includes a self-centering hole saw cutter/opener, flat drill bits for reaming, hinge boring, woodworking, wood slabs, and flat wing counterbore drilling tools. The set comes in metric sizes ranging from 15mm (19/32"), 16mm (5/8"), 17mm (43/64"), 18mm (45/64"), 19mm (3/4"), 20mm (25/32"), 21mm (53/64"), 22mm (55/64"), 23mm (29/32"), 24mm (15/16"), 25mm (1"), 26mm (1-1/16"), 27mm (1-3/32), 28mm (1-1/8"), 30mm (1-3/16"), 32mm (1-1/4"), 35mm (1-3/8") To 40mm(1-3/5") Carbon Steel Forstner Drill Bits, suitable for use on wood, plastic, and plywood.

Key Features:

1. Durability Design: Each bit features a center point guiding the cut, ensuring accuracy while maintaining a flat bottom in the hole.
2. Precisely Cut: The cylindrical cutter shears wood fibers at the bore's edge for cleaner, more precise cuts.
3. High-Quality Construction: Made from carbide tungsten steel, these bits are hot-treated for sharp edges, high hardness, accurate positioning, and smooth cutting. They are impact-resistant, tough, and produce less noise.
4. Versatile Applications: Perfect for various types of wood. Ideal for tasks like drilling drawer holes or mounting spherical door shoot tips. Suitable for use with pistol drills, bench drills, vertical drilling machines, hand-held electric drills, stand motor-driven drilling machines, and mobile ribbon type magnetic drilling machines.
5. Various Sizes Included: The set contains sizes from 15mm (19/32") to 40mm (1-3/5"), catering to a wide range of drilling requirements.
6. User-Friendly: Compatible with most drills, these bits are a must-have for woodwork enthusiasts.
7. Seller's Tips: To prevent overheating or smoke, always add some coolant (water) when operating. Note that these bits are intended for use with wood material only.