Wood Bit Sizes: φ15mm / 20mm / 25mm / 30mm / 35mm / 40mm / 45mm / 50mm / 55mm / 60mm. These wood drill bits can be used to drill large and small holes, maximum hole depth being 50mm. Drill Precisely: The wood drill has an eastern tip, 2 main cutting edges and 2 closed peripheral cutting edges. the wood drills being sharp, made the opening very precise, easy, and clean, no broken edge. Works for Number of Materials: The woodworking drill bit in alloy and carbon steel, can drill on the materials like hard plate, wood and plywood, fitting the ball point of old door, drawer etc. The wood router bit can drill overlapping, angled and pocket holes in all types of wood, easy to drill hinge hole, cylinder hole, computer desk thread hole and cabinet fixing . Compatible: The wood drill bit is suitable for drill press, pistol drill, drill press, vertical drill, hand electric drill, motorized stand drill and moving tape magnetism drill. Convenient storage: Each wood bit remains in a plastic bag with oil, avoiding corrosion, and the plastic case to prevent the bit from knocking together causing them to be damaged or blunt. Pack of 10 bits with centering point for hardwood and plastic. Technical data: Material: Alloy (milling head), carbon steel (shank) Quantity: 10 drills φ: 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm Shaft Diameter: 6.5mm/6.7mm/7.7mm/7.7mm/7.7mm/8.7mm/9.3mm/9.3mm/9.3mm/9.3mm. Drilling depth: 50mm - Length: 75mm. Benefits: Durable material: carbon steel for longer life. Dowel drill bits with titanium coating for use on wood. Driven by the circular rim, the holes in each arc of a circle in each direction. Drills a proper, accurate and clean bottom hole; rapid disposal of waste; radical cutting edges. Note: If you use this drill bit, the materials (e.g. wood, plastic products, plywood, etc.) The temperature will be very high, please add a little water or coolant to prevent the material from smoking. lucky meet Note: The data is manual measurement, please please allow 1-57cm error, due to the light and screen differences, there will be a certain color difference, the specific received in kind prevail.