Size: 3/8" F to 1/2" M; Fit for Extension Bar Diameter: 16mm / 0.63-inch.. Material: Made of Cr-V steel, chrome plated polish, good anti-corrision properties.. Secure Grip: Spring-loaded detent balls securely latch onto sockets, preventing them from being dropped.. Practical: Detent notches in socket ends lock onto ratchets and extensions.. Applications: Widely used in DIY hand-making, household maintenance, and most general repairs..
