05A407 - Walter SST Corecut 1-7/16" x 2" Annular Cutter with Universal Shank

Precision Drilling for Tough Alloys

The Walter 05A407 SST Corecut Annular Cutter represents the pinnacle of hole-making technology for industrial fabrication. Designed with a specific focus on difficult-to-machine materials, this 1-7/16" x 2" cutter utilizes Walter's proprietary Super Speed Tip (SST) technology. The defining feature of this series is its specialized bronze surface treatment. Unlike standard oxide coatings, the SST treatment effectively eliminates surface porosity on the cutter itself. This results in a microscopically smooth finish that drastically reduces friction at the cutting interface.

Friction management is critical when drilling stainless steel and other structural alloys to prevent work hardening and heat checking. The SST Corecut's advanced metallurgy allows it to operate at higher efficiencies while maintaining structural integrity. The cutter features fully ground, extra-large flutes which facilitate rapid chip evacuation—a crucial factor in deep hole drilling where chip packing can lead to catastrophic tool failure. By clearing debris efficiently, the tool runs cooler and cuts faster, extending the lifespan of the cutter and reducing machine downtime.

Versatility is also a key component of the 05A407's design. It is engineered with a universal shank, making it compatible with a wide array of magnetic drilling units and stationary machines without the need for specialized adapters. Whether utilized in a fabrication shop for structural steel components or on-site for infrastructure repair, this cutter delivers consistent, burr-free holes with tight tolerances. It is the ideal tooling solution for professionals demanding longevity and precision in their metalworking operations.