05E406 - Walter SST Core Cut Annular Cutter 1-3/8 Inch x 2 Inch Universal Shank

High-Performance Drilling with Walter SST Core Cut Technology

The Walter 05E406 SST Core Cut Annular Cutter represents the pinnacle of drilling efficiency for industrial applications. Designed with a diameter of 1-3/8 inches and a cutting depth of 2 inches, this tool is engineered to tackle the toughest materials found in structural fabrication and MRO environments. The defining feature of this cutter is its exclusive Bronze SST (Super Speed Tip) surface treatment. This advanced coating technology is not merely a finish; it fundamentally alters the interaction between the tool and the workpiece. By significantly reducing surface friction, the SST coating minimizes heat generation—a critical factor when drilling work-hardening materials like stainless steel. This ensures that the cutter maintains its hardness and edge retention far longer than standard high-speed steel alternatives.

Beyond its coating, the geometry of the Walter 05E406 is optimized for rapid material removal. It features fully ground, extra-large flutes that facilitate seamless chip evacuation. In deep hole drilling, chip packing is a common cause of tool failure and poor surface finish; the SST Core Cut design eliminates this issue, allowing for continuous, smooth drilling operations. The modern tooth design bites aggressively yet cleanly, producing accurate, burr-free holes that often require no secondary finishing operations. This precision eliminates porosity on the cut surface, ensuring an impeccable finish every time.

Versatility is central to the design of the 05E406. Equipped with a universal shank, this annular cutter is compatible with a wide array of magnetic drilling units available on the market. Whether you are operating in a fabrication shop or on a remote job site, this cutter integrates easily into your existing tooling setup. It is robust enough to handle structural steel, mild steel, aluminum, and stainless steel, making it an indispensable asset for metalworkers who demand reliability and speed. By reducing drilling time and extending tool life, the Walter SST Core Cut system delivers a lower cost per hole and higher overall productivity.