Features: This is a set of 4 pieces socket adapters specially designed for impact driver or wrench conversions. Spring-loaded detent balls securely latch onto sockets, preventing them from being dropped. Constructed of heavy duty heat treated chrome vanadium steel for superior strength to endure all conditions. With highly durable electrophoresis black coating finish, it is corrosion resistant to eliminate chance of rust for a long lasting time. Common size combinations multiply the range and capability of many socket set. Specifications: Condition: 100% Brand New Material: CRV Chrome Vanadium Steel Surface Treatment: Electrophoresis, Black Color Size: 1/2''-3/8"(12.7mm Female to 9.53mm Male） 3/8"-1/4"(9.53mm Female to 6.35mm Male） 3/8"-1/2"(9.53mm Female to 12.7mm Male） 1/4"-3/8"(6.35mm Female to 9.53mm Male) Quantity: 4Pcs Weight: Approx. 133g Package Included: 4 * Socket Adapters Features Versatile Socket Adapters: Convert your impact driver or wrench effortlessly with this set of 4 chrome vanadium steel socket adapters. Expand the capabilities of your tools for various tasks. Secure Socket Latching: The spring-loaded detent balls ensure a secure connection between the adapters and sockets, preventing accidental drops and improving work efficiency. Heavy Duty and Durable: Crafted from heat-treated chrome vanadium steel, these adapters offer exceptional strength and durability, making them suitable for use in any conditions. Corrosion Resistant Coating: The electrophoresis black coating provides a long-lasting corrosion resistance, eliminating the risk of rust and ensuring the longevity of the adapters. Enhanced Socket Set Range: With a variety of common size combinations, this set of adapters multiplies the range and capability of your socket set, allowing you to tackle a wider range of projects efficiently.