This drill chuck features a unique locking function and self-locking methods, effectively preventing work from becoming loose. It allows you to instantly convert an impact driver to hold non-quick change drill and driver bits. The keyless chuck easily locks onto and releases drill bits. **Features:** - Color: Black - Material: Aluminum alloy - Size: 7.2 x 2.4 x 2.4 cm - Keyless chuck design for easy bit locking and release - Converts impact driver to accept non-quick change bits - Made of durable aluminum alloy - Compatible with drill bits ranging from 0.3mm to 8mm **Warm Tip:** Please note that due to lighting effects, monitor brightness, and manual measurement, there may be slight variations in color and size between the photo and the actual item. **Package List:** 1 x Drill Chuck