Uxcell 2 Pcs 3/8 Inch Drive Universal Joint Swivel Deep Impact Socket, Cr-V Steel

Made of chrome vanadium steel construction for strength and durability.
To protect against rust and corrosion, the black phosphate finish absorbs and holds oil, repelling moisture.
Beveled drive end helps guide extension smoothly onto drive tool
Four detent grooves provide a secure connection with the drive tool.
When space is limited, it increases your access and gives you a better angle by working around obstructions and into tight spots.
International general size, can co-operate with ratchet wrench and manual wrench, suitable for use with hand tools and is not recommended for use with electric or air tools
Widely used in mining, metallurgy, shipbuilding, auto-repair and other industry.