Attributes:* Driver Size: 3/8 Inch* Bit Size: H10 (10mm)* Total Length: 60mm / 2.36 Inch* Bit Length: 42mm / 1.65 Inch* Material: Chrome Molybdenum Steel (CR-MO)* Finish: PhosphatingWhat Is Included:* 1 Pieces x Hex Bit SocketApplications & Features:--- Impact Triple Square Spline Bit Socket is crafted from strong Chrome Molybdenum (CR-MO) Steel. After heat treatment and forging, it has high hardness and good toughness.--- The hex bit socket features laser-etched size markings that are easy to read even in low light, making it easy to find the right socket.--- The black phosphate finish protects the hex bit key socket from rust and corrosion, absorbs and retains oil, and repelling moisture.--- The independent pin-hole base design adds extra security and works with a pin and O-ring system to ensure secure retention of the socket.