1. Quenching and Hardening The drill chucks APU16 APU13 APU08 BT30 BT40 are quenched and hardened, ensuring long durability and wear resistance. 2. Precision and Stability Designed with precision, this drill chuck offers stability and provides a reliable platform for drilling operations. 3. Quick Clamping Equipped with an integrated selftightening design, this drill chuck enables fast and secure clamping of the drill bit, minimizing downtime and improving efficiency. 4. Hardened SelfTightening 3Jaw Drill Chuck Tool Holder Featuring a threejaw design, this drill chuck tool holder delivers a strong and reliable grip on the drill bit, ensuring consistent performance. 5. Zero Gap and Firm Locking Jaws The chuck jaws lock firmly and seamlessly, providing a secure and tight hold on the drill bit. This not only enhances accuracy but also extends the overall lifespan of the chuck. 6. Precision: 08 mm This drill chuck provides a level of accuracy, enabling precise drilling with minimal deviation.