Dottie HPS412 - 4-1/2'' Cup & Die Set (4'' Conduit) is a high-speed alloy steel punch tool set designed for use with hole punch tools. Featuring centering lines and sizes laser etched on cups and dies for easy alignment, it offers 50% less torque and a 3 point die design to eliminate slug binding. Cups and dies are interchangeable with competing brands, with a durable black oxide finish.