[Package Included]: 3PCS 1/4-inch hex shank keyless drill chuck, including 1x 0.3 mm–3.6 mm drill chuck and 2x 0.3 mm–6.5 mm drill chucks. Easy to use and install, fast, convenient, and safe. An essential power tool accessory for everyday use. [Quick Change Adapter Converter]: Keyless design allows easy and quick bit and wire swapping. Simple loading and unloading. Enables fast task switching and helps maintain workflow efficiency. Compatible with most drill bits for hex-drive power tools. [Strict Quality Control]: Mini adapter drill chucks are manufactured under strict quality control. Made of high-quality steel. Durable and well-constructed for most applications. Compact size and lightweight design minimize operational strain. [Keyless Drill Chuck Design]: Keyless drill chucks allow conversion of cordless electric screwdrivers into drills or grinders. Easily adjustable for quick task switching and efficient workflow. Essential power tool accessories. [Wide Usage]: These drill chucks feature capacity ranges of 0.3 mm–3.6 mm and 0.3 mm–6.5 mm, suitable for most drills and cordless power screwdrivers. Ideal for repair technicians, model makers, and DIY enthusiasts. Suitable for use in garages, warehouses, offices, homes, and other locations. Color: Black + Silver Material: Steel Package Contents: 3 × Keyless Drill Chuck Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.