2PCS Keyless Drill Chucks with 10PCS Bits 1/4 Inch Hex Shank Drill Chuck Fast Change Converter Extension Screwdriver Drill Adapter for Impact Drill

1.Wide Compatibility: These keyless drill chuck bit set includes 2 keyless drill chucks and 10 drill bits ranging from 1.0 to 4.0mm, meeting a wide range of working requirements. One silver lined chuck measures 2.7 inches, with clamp range from 0.3 to 6.5mm, while the other black lined chuck measures 1.9 inches, with a clamp range from 0.3 to 3.6mm. The small and lightweight drill chuck extension pieces do not add extra burden to your operating. 2.Quick Installation: The keyless drill chuck bits seamlessly attach to power tools with a 1/4 inch hex shank for rapid and secure installation, allowing for quick and easy conversion of cordless screwdrivers into drill drivers for efficient task switching and reduced project completion time. 3.Steel Aluminum Material: Crafted from aluminum alloy, the keyless chuck body with detachable steel rod can withstand rigorous use, providing lasting performance. The sturdy material ensures reliability and durability, allowing you to confidently tackle a variety of drilling tasks. 4.Keyless Chuck Design: These drill chuck adapters effortlessly transform cordless screwdrivers into drill drivers or grinders, simply rotate the back for adjustment to quickly switch tasks and keep your workflow on track. They are essential power tool accessories. 5.Convenient Size: Designed with two different sized keyless chucks for versatile use in daily maintenance, automotive repairs, garage and warehouse work, as well as office and home applications. The various specifications of these keyless drill chuck bits make them compatible with most drill bits and cordless screwdrivers.