* Bits made of premium S2 alloy steel for superior hardness and great rust resistant.* Chrome vanadium steel socket for high strength and superior torque.* Notched drive ends fit any 3/8-inch drive ratchet or extension, preventing them from falling off.* Its chamfered end easily slides into fasteners, reducing wear.* Wide application in DIY hand-making, household maintenance, and most general repairs.Specifications:* Size: H6 (6mm)* Drive Size: 3/8-inch* Total Length: 48mm / 1.89-inch* Bit Material: S2 Steel* Socket Material: Chrome Vanadium Steel* Finish: Chrome Plated* HRC: 58-62Package Content:* 3 x Hex Bit Sockets.