The Hi-Pro Machine Key, sized at 1/4 x 3/4 inches, is made from high-quality carbon steel, providing exceptional strength and durability for various mechanical applications. This key is engineered to fit standard keyways, ensuring a secure connection between shafts and components. Its robust design meets industry standards, making it suitable for use in machinery that requires precise alignment and reliable performance. The carbon steel construction offers excellent resistance to wear, making it a dependable choice for demanding environments.