The Vevor annular cutter set is built from M2AL high-speed steel for durable, efficient cutting in magnetic drilling applications. This 6-piece set includes cutter sizes from 1/2" to 1-1/16" with a 1" cutting depth and a Weldon shank design for secure compatibility. Its geometric blade design helps improve cutting speed while reducing chip buildup during operation. A pilot pin, hex wrench, and portable carrying case are included for convenient setup, transport, and storage. It is suited for use on materials such as structural steel, alloy steel, stainless steel, aluminum, brass, and cast iron.