General description Keyless Mini 3-jaw Chuck Adapter Screwdriver is designed for securely holding round shank drills. This versatile tool features a keyless chuck converter that allows for quick switching between driving and drilling tasks in seconds. It is suitable for use in various settings, including automobiles, garages, warehouses, offices, and homes. Technical specifications Connection link: 1/4 '' hexagonal shank Clamping range: 0.3–3.6 mm Material: drop forged #45 carbon steel Usage Holds non-quick change drills Allows impact drivers to operate like regular drill bits Finger-tightens chuck for quick bit changes Other information Package contents: 1 x Quick Change Chuck Adapter Note: Size may have a 0-5mm error due to manual measurement Color may vary due to differences between monitors