05E401 - Walter SST Core Cut Annular Cutter 1-1/16 Inch x 2 Inch Universal Shank

Advanced Metallurgy for Precision Drilling

The Walter 05E401 SST Core Cut Annular Cutter represents a significant advancement in hole-making technology for industrial fabrication. Engineered with a diameter of 1-1/16 inches and a cutting depth of 2 inches, this tool is specifically designed to address the challenges of drilling tough materials such as stainless steel and structural steel. The defining feature of this series is the proprietary SST (Special Surface Treatment), a bronze-colored finish that goes beyond simple aesthetics.

This advanced surface treatment effectively eliminates microscopic porosity on the cutter's surface. By creating a flawlessly sleek finish, the SST coating drastically minimizes friction between the tool and the workpiece. Reduced friction translates directly to reduced heat generation—the primary enemy of cutting tool longevity. Consequently, the Walter SST Core Cut maintains its hardness and cutting edge far longer than standard high-speed steel cutters, even under the thermal stress of continuous drilling.

Mechanically, the cutter features fully ground, oversized flutes and a modern tooth geometry optimized for efficient material evacuation. This design ensures that chips are cleared rapidly from the cutting zone, preventing clogging and binding that can lead to tool breakage. The universal shank adds a layer of versatility, allowing this high-performance cutter to be utilized across a wide range of magnetic drilling units and stationary machines without the need for specialized adapters. For MRO professionals and fabricators requiring consistent, precise holes with minimal downtime, the Walter SST Core Cut is a superior choice.