Description
【PREMIUM MATERIALS】The conical drill sleeve is made of high-quality high-speed steel, which is hard and not easy to break, bringing you a better experience..【HIGH PERFORMANCE】The products are well-made and can maintain stable performance in harsh environments. High strength and hardness, stable working performance and long service life..【POLISHING】The tapered bit sleeve is finely polished and its excellent surface treatment makes it easier to use..【QUENCHING】The product has been quenched as a whole, which has higher hardness and wear resistance..【PERFECT SUBSTITUTE】Products are manufactured according to the original factory standards, directly replacing old or damaged products. Accuracy: 0.015mm; Hardness: 50 HRC.