Walter A-11 Grinding Point for Tough Steel

Industrial Grade A-11 Mounted Point for MRO

The Walter 12D031 is a professional-grade A-11 mounted point specifically formulated for the Maintenance, Repair, and Operations (MRO) sector and heavy industrial fabrication. This bonded abrasive tool is designed to meet the rigorous demands of grinding "tough steel"—a category that includes hardened tool steels, high-tensile alloys, and robust cast iron structures. The A-11 shape, characterized by its cylindrical body and rounded nose, is a standard in the industry for accessing deep cavities, fitting metal parts, and enlarging bores where precision is critical.

Technically, the performance of a mounted point is defined by the quality of its bonding and the friability of its grain. Walter utilizes a specialized vitrified bond matrix that holds the abrasive grains securely while allowing for controlled breakdown. This ensures that fresh, sharp cutting edges are continuously exposed during the grinding process, preventing the stone from loading up or burning the workpiece. This is particularly important when working with high-tensile steels, which are prone to heat buildup. The 12D031 maintains a cool cutting action, preserving the metallurgical integrity of the base material.

Safety and tool longevity are also central to the design of this product. The 1/4-inch steel shank is securely bonded to the abrasive head, ensuring safety at the high rotational speeds typical of pneumatic and electric die grinders. The strict manufacturing tolerances regarding balance mean that the spindle runout is minimized, which significantly extends the life of the die grinder's bearings and collet. For welders and machinists requiring a reliable, aggressive, and precise grinding implement for fitting and finishing, the Walter 12D031 A-11 point is a superior choice.

Technical Specifications:

• Shape Code: A-11
• Compatibility: Die grinders with 1/4" collets
• Primary Materials: Steel, Cast Iron, High Tensile Alloys
• Function: Deburring, enlarging, blending, and fitting