12D057 - Walter A-21 Grinding Point for Steel and Cast Iron

Precision Abrasive Mounted Point for Industrial Finishing

The Walter 12D057 is a premium-quality A-21 mounted point designed to meet the rigorous demands of industrial metalworking. Manufactured by Walter Surface Technologies, this abrasive tool is engineered with a specific focus on balance and concentricity. Unlike generic mounted points that may wobble or cause excessive vibration, Walter points are meticulously trued during the manufacturing process. This attention to detail ensures that the point runs perfectly true on its axis, protecting the bearings of pneumatic and electric die grinders while reducing operator fatigue caused by hand-arm vibration.

Constructed from high-grade aluminum oxide grain bonded in a vitrified matrix, this point is specifically formulated for ferrous metals. It excels in applications involving mild steel, cast iron, and tool steels. The abrasive structure is designed to break down at a controlled rate, revealing fresh cutting edges to maintain a consistent material removal rate without glazing over or generating excessive heat. The A-21 shape, featuring a 1-inch diameter and 1-inch length with a cylindrical body and rounded nose, is one of the most versatile profiles for general maintenance and fabrication tasks.

This product is an essential consumable for MRO environments, machine shops, and foundries. It is particularly effective for fitting operations, enlarging holes, deburring internal diameters, and smoothing out flash on castings. The 1/4-inch steel shank is hardened and ground to ensure a secure grip in standard collets, preventing slippage under load. When precision and tool longevity are paramount, the Walter 12D057 provides the reliability required for professional finishing operations.