Description [PACKAGE CONTAINS]: 3Pcs: 1/4, 3/8, 1/2 each with 1/4 hex wrench/screwdriver bits for all drive systems quick-change drill chucks. Turns any electric drill into a conductive power nut The heavy-duty Spring-loaded ball bearings hold sockets securely in place. Sockets snap firmly and wont slip. [Colorful]: Easy to choose: Different color-coded rings, clear help quickly choose the right one. Our products belong to the latest updates, the quality is super good. [Material]: chrome vanadium QUALITY: Manufactured from hardened chrome-vanadium (Cr-V) steel to ensure long life The construction to be compatible with the most powerful impact guns. [Usage]: Sits comfortably and securely in your drill chuck or hand-held driver. Comprised of your most common bit sizes 1/4, 3/8, and 1/3 change shank sizes Provides versatility and convenience whatever tool you have chosen to use. Great for DYI, auto repairs, household maintenance, and most general repairs. A good addition to any set of tool boxes.