Wood Drill 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, the maximum hole depth is 50mm. Drill Precisely: The wood drill bit has an oriental point, 2 main cutting edges and 2 closed peripheral cutting edges. The wood drill bits are sharp, make the opening very precise, easy, and clean, no broken edge. Work for Many Materials: The wood drill bit made of alloy and carbon steel, can drill on the materials like hardboard, wood and plywood, the ball point assembly of the old door, drawer etc. The wood router bit can drill overlapping, angled and pocket holes in all kinds of wood, easy to drill the hinge hole, cylinder hole, computer desk thread hole and cabinet fixing. Compatible: The wood router bit is suitable for drill press, pistol drill, drill press, vertical drill, hand electric drill, motorized drill with base and mobile band magnetic drill. Convenient Storage: Each wood router bit