Advanced technology manufacturing with high-quality materials for long service life. Drills neat, smooth holes without broken edges or vibration. Low cutting resistance improves drilling speed and allows easy chip removal. Suitable for various materials including wood, wood products, plastics, and plywood. Easy to install and use; compatible with standard hand drills. Operates with low noise. Blade type: arc edge Size: 15/20/25/30/35mm Color: Silver Material: Alloy steel Package Contents: 5 x Drill Bits Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.