High-concerned chemical: None – This drill chuck adapter is manufactured without the use of high-concern chemicals. Origin: China Suitable for: General use Usage scenarios: Professional and DIY applications 1. Enhanced Durability: Crafted from high-grade chrome vanadium steel and subjected to a rigorous strengthening process, this drill chuck offers superior wear resistance and stable gripping power. 2. Precision Drilling: Featuring a three-jaw self-centering mechanism, this keyless drill chuck ensures accurate drill bit alignment and tight clamping. 3. Simple Installation: Designed for versatility, this power drill chuck accommodates 1.5–6.5 mm bits. 4. Quick Bit Changes: Equipped with a keyless manual tightening mechanism and a 1/4 inch hex shank interface, this drill chuck adapter facilitates rapid tool bit swaps.