05A315 - Walter SST Core Cut Annular Cutter 15/16 Inch x 2 Inch Depth

High-Performance Drilling with Walter SST Core Cut Technology

The Walter SST Core Cut Annular Cutter (05A315) represents the pinnacle of magnetic drilling efficiency. Sized at 15/16-inch diameter with a 2-inch depth of cut, this tool is engineered for heavy-duty industrial applications where precision and speed are non-negotiable. Unlike traditional twist drills that must remove all material from the hole, this annular cutter removes only a periphery ring, ejecting a solid slug. This method requires significantly less horsepower and thrust, resulting in faster penetration rates and reduced wear on your magnetic drilling machine.

What sets the SST series apart is Walter's proprietary Super Surface Treatment (SST). This advanced bronze coating creates a flawlessly smooth surface on the cutter, effectively eliminating microscopic porosity. The result is a tool that glides through metal with minimal friction. Reduced friction means less heat generation—the primary enemy of cutting tool life. Consequently, the SST Core Cut maintains its hardness and cutting edge far longer than standard high-speed steel bits, even when tackling tough materials like stainless steel and structural steel.

Chip evacuation is critical in deep hole drilling, and Walter has optimized this with fully ground, extra-large spiral flutes. These deep channels rapidly transport swarf away from the cutting zone, preventing clogging and binding that can shatter inferior cutters. Combined with a modern tooth geometry designed for aggressive yet stable cutting, this tool delivers clean, burr-free holes that often require no secondary finishing. The universal shank ensures compatibility with virtually all major brands of magnetic drill presses, making it a versatile addition to any fabricator's toolkit.

Whether you are working in a fabrication shop, on a construction site, or performing maintenance repairs, the Walter 05A315 delivers consistent, reliable performance. It excels in drilling mild steel, aluminum, and is particularly effective on stainless steel where heat management is critical.