05A400 - Walter SST Annular Cutter 1-inch x 2-inch Universal Shank

High-Performance Drilling with SST Technology

The Walter 05A400 SST Core Cutter represents a significant advancement in hole-making technology for industrial applications. Engineered with Walter's proprietary Super Speed Tip (SST) technology, this 1-inch diameter cutter is designed to overcome the common challenges associated with drilling tough metals like stainless steel and structural steel. The core of its performance lies in the specialized bronze SST surface treatment. Unlike standard coatings, this treatment is integral to the cutter's geometry, significantly reducing the coefficient of friction between the tool and the workpiece. This reduction in friction is critical for minimizing heat generation—the primary cause of premature tool failure—thereby extending the operational lifespan of the cutter.

Manufacturing precision is a hallmark of the SST line. Walter utilizes cutting-edge surface treatment processes to eliminate microscopic porosity on the cutter's surface. The result is an impeccably smooth finish that facilitates superior material evacuation. When drilling deep holes, up to the 2-inch depth capacity of this unit, efficient chip removal is essential to prevent binding and breakage. The fully ground, extra-large flutes work in tandem with the smooth surface to eject chips rapidly, ensuring continuous, uninterrupted drilling cycles. This geometric optimization allows for higher feed rates without compromising the integrity of the tool or the quality of the hole.

Versatility is also a key design consideration. The 05A400 features a universal shank, making it compatible with a wide array of magnetic drilling units and stationary machines commonly found in industrial settings. Whether working on aluminum, mild steel, or high-tensile structural alloys, the contemporary tooth design ensures aggressive yet stable cutting action. By concentrating the cutting force on the periphery of the hole rather than the entire area, this core cutter requires less power and thrust than traditional twist drills, making it an energy-efficient solution for heavy-duty fabrication tasks.