The hexagonal wrench is made of 45 carbon steel with a galvanized surface, which is strong and durable, anti-corrosion and anti-rust. Full loop design on the end, which provides a firm grip and prevents slipping during use, and can be easily hung on a keychain. The dogging keys spanner is fit for end caps, dogging assembly, dogging doors, bars, restaurants, security departments, or other exit devices with door lock ware of this size.
