【High Quality Material】The quick drill chuck is made of high quality plastic and chrome vanadium steel, high hardness, durable in use, which is strong, wear-resistant, not easy to rust and has a long service life. 【Easy to Install】This keyless chuck converter can easily convert an electric screwdriver into a drill or grinder. Easily lock and unlock the drill bit without the need for a key. Simply click the chuck into the impact drill, small and portable, improve work efficiency. 【Not Easy to Loosen】Special jaw treatment with good abrasion resistance. The keyed chuck has built-in anti-thrust bearings that convert hand-applied torque into excellent grip and prevent loosening caused by strong vibrations. 【Multifunctional Drill Chuck】1 drill chuck + 1 air batch adapter, the keyless handling of the drill chuck allows for easy operation and quick tightening of the drill. This not only saves time, but also contributes to safety when clamping round and hex shank drills in the chuck.