05E991 - Walter SST Core Cut Annular Cutter Set - 1 Inch Depth - 5 Piece Kit

Precision Drilling Solution for Heavy Industry

The Walter SST Core Cut Universal Shank 1" Cutter Kit (SKU: 05E991) represents a premium solution for metal fabrication professionals requiring reliable, high-performance hole cutting. Designed for use with magnetic drilling units, this set compiles the five most frequently utilized cutter diameters into a single, job-ready package. The cutters feature Walter's proprietary SST (Super Speed Tip) formulation, a high-speed steel blend engineered to resist heat buildup and maintain cutting edge integrity even when machining high-tensile materials like stainless steel.

Efficiency is at the core of the SST design. Unlike twist drills, these annular cutters remove material only at the periphery of the hole, ejecting a solid slug. This process requires significantly less energy and force, allowing for faster penetration rates and cleaner, burr-free holes that often require no secondary finishing. The 1-inch depth of cut is ideal for standard structural plate, pipe flanges, and equipment frames found in MRO and construction environments.

Compatibility is a key feature of this kit. The Universal Shank design incorporates multiple flats and connection geometries, allowing these cutters to lock securely into arbors from major manufacturers such as Hougen, Jancy, Alfra, Nitto, and Fein. This eliminates the need for multiple inventory lines of brand-specific consumables. The kit includes a pilot pin which serves the dual function of centering the cut and ejecting the slug upon completion, ensuring a smooth workflow.