General description Excellent quality wood drill bits made of tungsten steel and heat treated for durability. This set includes six sizes (30mm, 35mm, 40mm, 45mm, 50mm, and 60mm) designed for precise drilling of flat bottom holes in various materials such as soft wood and plastic products. The curved design enhances chip removal and drilling efficiency. Technical specifications Material: Tungsten steel Sizes: 30mm, 35mm, 40mm, 45mm, 50mm, 60mm Features: High hardness, sharp edge, high precision, smooth cutting, impact resistance, high toughness Compatibility and accessories Compatible with pistol drill, bench drill, handheld electric drill, hand electric drill, motorized drill, and moving magnetic tape drill Usage Ideal for precise drilling of flat bottom holes without chipping in soft wood Perfect for mounting tips of spherical doors and drawers Suitable for perforation on wood products, plastic products, wood, and plywood Other information Easy to store and select