Make opening or tightening nuts and drill chucks a breeze with the 2-In-1 Drill Chuck Ratchet Spanner. This innovative tool eliminates the time-consuming and painful process of manually adjusting nuts or chucks. Simply set its switch to "forward" or "reverse," and effortlessly open or tighten any drill chuck, making your DIY projects or repairs more efficient and enjoyable. Why You'll Love It 2-in-1 design: This spanner has two opening screws that are 12.7mm and 17.5mm in diameter, as well as a positive and negative ratchet. So freely use it to loosen up or tighten most drill chucks. Simple to use: This drill chuck ratchet spanner requires no effort to use. Simply turn the switch forward or backward as needed to loosen or tighten any drill chuck. Ergonomic design: The handle of this ratchet spanner is built-in friction force. It gives you a strong grip and avoids slipping. Features Material: Steel + Rubber Key Diameter: Small 12.7mm (approx.), Big 17.5mm (approx.) Open any nut quickly Equipped with forward/reverse switch Non-slip handle Simple & easy to use