The RU3, 1011B Russwin Key is a high-quality key blank that is commonly used by locksmiths and key cutting professionals. This key is a cross-reference to the Ilco 1011B and is suitable for a wide range of lock applications. Its durable construction and reliable performance make it a popular choice among professionals in the industry. Whether you’re looking to replace lost keys or need to cut a new one for a lock, the RU3, 1011B Russwin Key is a reliable and versatile option.