What material is used in the jaws of a bench yoke vise?

The jaws of a bench yoke vise are typically made from alloy steel due to the material's strength, durability, and resistance to wear. Alloy steel is specifically designed to withstand significant force and pressure without deforming, which is essential for a vise that is used to hold workpieces securely during machining or assembly. This material allows for effective clamping of various metals and can endure repeated use without losing its structural integrity.

Plastic and rubber, while useful for some applications, would not provide the necessary rigidity and strength needed for a vise. Wood might be used in certain specialized vises or for protecting softer materials, but it lacks the durability and longevity of alloy steel. Therefore, alloy steel is the optimal choice for ensuring the performance and reliability of a bench yoke vise.