Description This drill chuck features a unique locking function and self-locking mechanism, effectively preventing bits from becoming loose during use. It allows instant conversion of an impact driver to hold non-quick change drill and driver bits. The keyless design enables easy bit insertion and removal. Features - Color: Black - Material: Aluminum alloy - Size: 7.2 x 2.4 x 2.4 cm - Keyless chuck for quick bit locking and release - Converts impact driver to accept standard drill and driver bits - Constructed from aluminum alloy for strength and durability - Compatible with drill bits from 0.3 mm to 8 mm Note: Due to lighting effects, monitor brightness, and manual measurement, slight variations in color and size may occur between the photo and the actual item. Package List 1 x Drill Chuck