05A008 - Walter SST Core Cut Annular Cutter 1/2-Inch Diameter x 1-Inch Depth

Advanced Metallurgy for Precision Drilling

The Walter 05A008 1/2" x 1" SST Core Cut Annular Cutter represents a significant advancement in hole-making technology for industrial fabrication. Engineered by Walter Surface Technologies, this cutter utilizes a proprietary Super Speed Tip (SST) surface treatment. This specialized bronze treatment is not merely a coating but an integral surface enhancement that eliminates microscopic porosity on the cutter's exterior. By creating an exceptionally smooth surface, the SST technology drastically reduces the coefficient of friction between the tool and the workpiece. This reduction in friction is critical for minimizing heat generation—the primary cause of tool failure in high-speed steel cutters—thereby extending the service life of the tool significantly.

Mechanically, the cutter features a modern tooth design paired with fully ground, extra-large flutes. This geometry is optimized for rapid chip evacuation, which is essential when drilling deep holes in gummy materials like aluminum or work-hardening alloys like stainless steel. The efficient removal of swarf prevents clogging and heat buildup, ensuring consistent cutting performance throughout the tool's life. The cutter is designed with a universal shank, making it compatible with a wide array of magnetic drilling units and stationary drill presses without the need for specialized adapters. This versatility allows for seamless integration into existing tooling inventories.

The 05A008 is specifically rated for a 1-inch depth of cut with a 1/2-inch diameter, making it a staple size for structural steel connections and fabrication. The precision grinding ensures that the cutter produces holes with tight tolerances and superior surface finishes, often eliminating the need for reaming or deburring. Whether applied to structural steel, stainless steel plate, or aluminum components, the Walter SST Core Cut delivers reliable, high-precision performance demanded by MRO professionals and heavy industrial fabricators.