[Function] These keyless drill chucks allow you to easily convert a cordless power screwdriver into a drill or grinder, enabling quick task switching and maintaining work efficiency. They are essential accessories for power tools. [Wide Range of Applications] These drill chucks are compatible with various drills and cordless power screwdrivers. Suitable for use in cars, garages, warehouses, offices, homes, and more. [Easy Loading and Unloading] This keyless drill chuck converter enables fast switching from driving to drilling in seconds. Designed for one-handed operation, ideal for working in tight spaces. [Size] 0.3 - 3.6 mm, 30g; 0.6 - 8.0 mm, 48g Color: Black Material: Aluminum alloy + carbon steel Package Contents: 1 set * drill chuck The package includes only the items listed above; other accessories are not included. Note: Due to lighting and screen differences, the color in the image may slightly vary from the actual product. Measurement error allowed is +/- 1-3 cm.