Wide Clamping Range for Versatile Use: This keyless drill chuck set includes two chucks with different capacities—one fits drill bits from 0.3mm to 6.5mm, and the other from 0.3mm to 3.6mm—making it suitable for a wide variety of drilling tasks while maintaining a compact and lightweight design. Quick and Easy Tool Changes: Equipped with a 1/4 inch hex shank, this adapter allows for seamless and secure installation into impact drivers and power tools, enabling fast transitions between screwdriving and drilling tasks, improving efficiency and saving time. Durable Construction for Long-Lasting Performance: Made from high-quality carbon steel, these chucks are built to withstand heavy-duty use, offering reliable strength and durability even under demanding work conditions. Ideal for Multiple Applications: Perfect for car repairs, garage maintenance, warehouse work, home improvement projects, and more, these versatile adapters turn your impact driver into a powerful drill—making them an essential addition to any toolkit. Compact & Lightweight Design: The larger chuck measures 2.2×7.34 cm (0.87×2.89 in) and the smaller one 1.7×4.92 cm (0.67×1.94 in), with the weight of larger chuck only 42g and the smaller one only 20g. Their small size makes them easy to handle, transport, and store without adding unnecessary bulk or weight during operation.

2-Pack Keyless Drill Chuck Adapter for Impact Driver, 1/4 Inch Hex Shank Quick Change Converter Extension with 0.3-6.5mm / 0.3-3.6mm Chuck Size for Drill Bits