[Quik Change Adapter Converter]: Keyless design allows one to easily and quickly swap bits and wires, easy to load and unload. Can quickly switch tasks and maintain work progress, which simplified all your tasks. Hexadecimal drive power tools are allowed to be applied with most drill bits. [Package Included]: 30PCS 1/4inch hex shank keyless drill chuck, include 10x 0.3mm-3.6mm drill chuck, and 20x 0.3mmx6.5mm dill chucks. Easy to use and install, fast, convenient and safe, it is an essential power tool accessory in . [Keyless Drill Chucks Design]: Keyless drill chucks can easily turn a cordless electric screwdriver into a drill or grinder; Can be easily to adjusted to quickly switch tasks and maintain work progress. They are essential power tool accessories. [ Quality Control]: Our mini adaptor drill chuck manufactured under quality control. Made of high qualitity metal meterial. , well-made, they are good enough for most jobs. Small size and light weight, not bring additional burden to the operation. [Wide usage]: These drill chucks' specifications are 0.3mm-3.6mm/0.3mm-6.5mm, which suitable for most drills and cordless power screwdrivers. For repairers, model makers, DIY enthusiasts,It is an perfect tool to use in garages, warehouses, offices, houses and other places., Weight: 2.3038306379 Pounds, Manufacturer: Ynusgeyx