uxcell 3 Pcs 3 8 Drive x 4mm Hex Bit Socket Standard Metric S2 Cr V Steel

Descriptions: * Made of S2 alloy steel, withstand high torque and do not twist, protecting both the bit and the fastener. * Notched drive ends fit any 3/8-inch drive ratchet or extension, preventing them from falling off. * Wide used in DIY hand-making, automotive repairs, household maintenance, and most general repairs. Specifications: * HRC: 58-62 * Size: H4 * Drive Size: 3/8-inch * Total Length: 48mm / 1.89-inch * Color: Brass Tone, Silver Tone * Material: S2 Steel Package Content: * 3 x Bit Sockets