Features: Applicable to gypsum board, plastic board, wooden board, solid wood, artificial wood, all kinds of wood, woodworking than disposable woodworking gadgets. It is high hardness, wear resistance, good toughness, heat and corrosion. Powerful : Three pointed hexagonal flat drill for board opening drawer door lock reaming Made from the heart, your life's good helper Toughness / high strength and powerful, essential for woodworking Sharp blade preferred material to work and conveniently to improve work efficiency Product Name: Woodworking Hole Opener Type: Center Drill Bit : Woodworking Use: Wood Drilling Material: carbon steel colour: silver Package Contents: 1 x Hole Opener set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.