Flush pin gages, also known as step gages or go/no-go pin gages, are precision measuring tools crucial for machining and inspection, designed to verify dimensional relationships, particularly depth, step heights, hole depths, hole chamfer depths or diameters, counterbore depths, and various features on hydraulic ports. They function as go/no-go style attribute gages, providing a rapid and reliable method for determining if a measured feature is within specified tolerances. Consisting of a body with a sliding pin that extends or retracts to correspond with the feature being measured, the pin’s position relative to the gage body indicates whether the part is “go” (within tolerance) or “no-go” (outside of tolerance). This is achieved by comparing the pin’s end to marked lines or steps on the gage body, or by using a dedicated indicator. This simple, direct method makes flush pin gages ideal for high-volume production environments where speed and accuracy are paramount, verifying distances and depths of components and ensuring finished products meet strict tolerances. By investing in high-quality flush pins, you can save time and money by reducing errors and minimizing the need for costly rework.
