12D122 - Walter A-38 Vitrified Mounted Point for Steel

Precision Grinding with Walter A-38 Mounted Points

The Walter 12D122 is a premium A-38 mounted point engineered for heavy-duty industrial applications. In the world of metal fabrication and MRO, precision and tool longevity are paramount. Walter Surface Technologies has developed this line of mounted points to address common issues found in standard abrasives, such as eccentricity and excessive vibration. By utilizing a high-grade aluminum oxide grain mixture bonded with a robust vitrified matrix, this point delivers consistent cutting action on mild steel, cast iron, and tool steels.

The A-38 shape is a standard cylindrical profile, typically measuring 1 inch in diameter by 1 inch in length, making it exceptionally versatile for internal diameter (ID) work. It is particularly effective for fitting operations, enlarging holes, and smoothing out ridges in castings where larger grinding wheels cannot reach. The 1/4-inch shank is precision-ground to ensure a secure fit in pneumatic or electric die grinders, minimizing runout.

One of the critical technical features of this product is its balance. Unbalanced mounted points can cause "chatter" on the workpiece, leading to poor surface finishes and dimensional inaccuracies. Furthermore, vibration is a leading cause of premature failure in die grinder bearings and collets. Walter's manufacturing process ensures that every 12D122 point is perfectly balanced, allowing for higher RPM usage within safety limits and providing a smoother, more controlled grinding experience. This attention to detail results in a consumable that not only performs better but also contributes to the longevity of your power tools.

Operators looking for a reliable solution for deburring, flash removal, and general stock removal in hard-to-reach areas will find the 12D122 to be an indispensable asset. Its formulation prevents rapid loading when working on ferrous metals, ensuring that the abrasive grains remain exposed and active throughout the life of the point.