The Black Widow key machine is designed to quickly cut all keys a locksmith needs to run their business: high-security, edge-cut, dimple, tibbe, and tubular key blanks. Use your mobile device via Bluetooth to cut keys by code, duplicate, and progression your keys.Use this app if your serial number begins with EW2110 or lower. If your serial number begins with EW2111 or higher, please use the V2 app instead.