The Machine Key M3 x 3 x 15 Form A from G L Huyett is a high-quality undersized key made from durable carbon steel. Measuring M3 x 3 x 15, this key is designed for secure engagement in various mechanical assemblies, ensuring reliable performance in automotive and industrial applications. Its form A design allows for easy installation and compatibility with a wide range of machinery. This machine key meets industry standards, providing engineers and technicians with a dependable solution for effective power transmission and secure fastening.