1. The strong tungsten carbide drill bit tip with a spearhead design can easily penetrate various materials (such as tiles, concrete, bricks, glass, plastics, and wood), and reduce chipping. 2. It has high hardness and wear resistance, and can be installed on both hand drills and electric drills. 3. It is professional, sharp, and durable, with a performance 50% higher than other drill bits. The high - speed spiral design can effectively handle debris and improve work efficiency. 4. Color: Gold 5. Material: Metal 6. Package contents: - 5 hole saws (1 each with blade sizes of 5*97 mm, 6*100 mm, 8*110 mm, 10*120 mm, and 12*120 mm) 7. Only the above - mentioned package contents are included, and other items are not included. 8. Note: Light and different monitors may cause slight differences between the color of the item and the actual object. A measurement error of +/-1 - 3 cm is allowed.