Made of AISI 8660 Chrome-Molybdenum Vanadium Steel Made of AISI 8660 Chrome-Molybdenum Vanadium Steel Smooth rotational cap for easy screw/unscrew quickly without liting the bits. Ergonomic non-slip dual color TPR and Nylon handle for user comfort. Black Tip guarantees long service life and anti-corrosion Ideal for video game, toys and electronic devices.