05F121 - Walter 21mm Carbide Tipped Annular Cutter 30mm Depth

High-Performance Drilling with Walter Carbide Core Cut

The Walter 05F121 is a premium 21mm x 30mm Carbide Core Cut annular cutter engineered for the most demanding industrial drilling applications. Manufactured by Walter Surface Technologies, this tool represents the pinnacle of drilling efficiency, specifically designed to tackle hard, abrasive, and uneven materials that typically compromise standard High-Speed Steel (HSS) cutters. By utilizing advanced tungsten carbide tips, this cutter delivers exceptional hardness and heat resistance, allowing for significantly higher feed rates and rotational speeds without sacrificing tool life or hole quality.

Industrial fabrication often requires precision holes in challenging substrates such as stainless steel, cast iron, and high-tensile alloys. The Walter Carbide Core Cut series addresses these challenges with a specialized body and flute design that maximizes rigidity and chip evacuation. This ensures that even when drilling through thick plate or curved surfaces like pipes, the cutter maintains stability and precision. The 21mm diameter is a versatile size for bolt holes and structural connections, while the 30mm depth of cut provides ample capacity for standard plate thicknesses found in heavy construction and maintenance operations.

For MRO professionals and metalworkers, reliability is paramount. This cutter reduces downtime associated with frequent tool changes and resharpening. Its robust construction minimizes the risk of breakage when encountering uneven surfaces or overlapping holes, a common scenario in repair work. Whether used in a workshop setting or on-site with a portable magnetic drilling unit, the Walter 05F121 ensures consistent, burr-free results. It is an essential component for any tooling inventory focused on efficiency and high-quality metalworking outcomes.

Key Technical Benefits:

• Extended Tool Life: Carbide inserts resist wear far better than HSS, especially in abrasive materials.
• Thermal Stability: Maintains cutting edge integrity even under high-temperature drilling conditions.
• Precision Geometry: Engineered flutes prevent clogging and reduce friction during deep cuts.
• Versatile Application: Proven performance on rust, scale, and uneven surfaces where other bits fail.