Our sockets are constructed from Chrome Vanadium or Chrome Molybdenum steel, and are corrosion and rust resistant. Available in a variety of sizes for all types of projects and needs. Designed to be dependable, durable, and efficient. Units of measurement come in metric and standard. The 12-point end allows for greater torque and prevents slippage. Provides fast and easy placement onto drive tools and fasteners. Large markings on socket allow for easy and quick identification. Created for hand use only.