The Niagara Shell Milling Cutter is a high-quality cutting tool made of high-speed steel. With a shell end mill design, this cutter is perfect for precision milling tasks. The 1-1/2" x 1/2" size makes it suitable for a variety of metalworking projects, ensuring smooth and accurate results. The Niagara brand is known for its durability and reliability, making this milling cutter a valuable addition to any workshop or manufacturing facility.