05D728 - Walter 2-3/4 Inch Carbide Tipped Annular Cutter 3 Inch Depth

Precision Carbide Annular Cutter for Hardened Alloys

The Walter 05D728 Carbide Core Cut is a premium industrial annular cutter engineered for the most demanding drilling applications. Featuring a 2-3/4 inch cutting diameter and a 3-inch depth of cut, this tool is specifically designed to overcome the limitations of High-Speed Steel (HSS) when working with hard, abrasive, or high-tensile materials. The cutter utilizes high-grade tungsten carbide tips that maintain their cutting edge significantly longer than traditional materials, making it the optimal choice for processing stainless steel, cast iron, and specialized structural alloys.

Technically, the Carbide Core Cut series incorporates a sophisticated flute and body design that maximizes structural rigidity while optimizing chip flow. In deep hole drilling—up to 3 inches—efficient chip evacuation is critical to preventing heat buildup and work hardening of the material. Walter's design ensures that chips are ejected smoothly, allowing for higher feed rates and reduced cycle times. The carbide inserts are brazed to withstand high thermal loads, ensuring consistent performance even in dry drilling applications or when using minimal lubrication, although proper coolant is always recommended for maximum lifespan.

This cutter is particularly effective for applications involving uneven surfaces, such as pipe or curved structural beams, where twist drills often wander. The annular cutting action removes material only at the periphery of the hole, requiring significantly less horsepower and thrust than solid drill bits. This efficiency reduces wear on the magnetic drilling unit and allows for large-diameter drilling on site with portable equipment. For MRO professionals and fabricators dealing with challenging metallurgy, the 05D728 offers a reliable, high-precision solution that reduces downtime associated with tool changes and failed cuts.