Walter SST Core Cut Annular Cutter 15/16 Inch x 2 Inch Depth

Precision Annular Cutter for Tough Alloys

Maximize your fabrication productivity with the Walter 15/16" x 2" SST Core Cut Annular Cutter. Designed for professional welders and metalworkers, this cutter (SKU: 05A315) is built to handle the rigorous demands of drilling through thick plate and structural components. The "SST" designation stands for a specialized bronze surface treatment that significantly enhances the tool's tribological properties. By smoothing out the microscopic peaks and valleys on the tool's surface, the coating prevents material adhesion and reduces the coefficient of friction during the cut.

Heat buildup is the leading cause of tool failure in annular cutters. The Walter SST design combats this by minimizing friction, allowing the cutter to run cooler even under heavy loads. This thermal stability is crucial when drilling work-hardening materials like stainless steel, as well as softer, gummy materials like aluminum that tend to gall. The cutter features a sophisticated tooth geometry that balances cutting forces, ensuring the tool stays centered and stable without wandering, eliminating the need for pilot drilling or step drilling.

Key Operational Benefits:

• Universal Fit: The shank is designed to lock securely into almost any magnetic drill arbor, including those with quick-connect systems or standard set-screw holders.
• Efficient Chip Removal: The extra-large flutes are fully ground, not just milled, providing a slick path for chips to exit the hole. This is vital for the 2-inch depth capacity, ensuring the cutter doesn't jam deep in the material.
• Superior Finish: Because the cutter runs smooth and cool, the resulting hole finish is exceptional, often meeting reaming tolerances directly off the drill.

For shops looking to reduce cost-per-hole, the durability of the Walter SST Core Cut makes it a smart investment. It stays sharp longer, reduces machine strain, and speeds up cycle times, allowing operators to move quickly from one hole to the next with confidence.