05A414 - Walter SST Core Cut Annular Cutter 1-7/8 Inch x 2 Inch Depth

Advanced Metallurgy for Precision Drilling

The Walter 05A414 SST Core Cut Annular Cutter represents the pinnacle of hole-making technology for industrial applications. Designed with a diameter of 1-7/8 inches and a cutting depth of 2 inches, this tool is engineered to deliver superior performance in the most demanding metalworking environments. The defining feature of the SST (Super Speed Tip) series is its advanced surface treatment. Walter utilizes a proprietary bronze SST coating that effectively eliminates microscopic porosity on the cutter's surface. This treatment creates an exceptionally smooth finish that drastically reduces the coefficient of friction between the tool and the workpiece.

Friction is the primary enemy of tool life in drilling operations, generating heat that can degrade the cutting edge and work-harden the material. By minimizing this friction, the SST Core Cut operates at lower temperatures, preserving the temper of the high-speed steel and allowing for higher feed rates without compromising integrity. Furthermore, the cutter features fully ground, extra-large flutes. This geometric optimization ensures rapid and efficient evacuation of chips, preventing clogging and binding deep within the hole—a critical factor when drilling to a 2-inch depth in gummy materials like aluminum or tough alloys like stainless steel.

The modern tooth design and cutter geometry are specifically calculated to balance cutting forces, reducing the power requirement of the magnetic drill unit while maintaining aggressive penetration. The universal shank ensures compatibility with a wide array of magnetic drilling machines, making this a versatile addition to any tool crib. Whether utilized in stationary setups or portable magnetic drills, the Walter SST Core Cut delivers consistent, precise tolerances and a surface finish that often eliminates the need for secondary reaming operations.

For MRO professionals and machinists who demand reliability, the 05A414 offers a robust solution that combines speed, longevity, and precision. The reduction in drilling time and the increase in holes-per-cutter translate directly to operational cost savings and improved throughput in structural steel fabrication and heavy equipment repair.