High Speed SteelAdjust with the Set Screw for precision depth of threadsHigh Speed Steel stays much sharper than a Carbon Steel DieM1.3 X 0.25 Round Adjustable DieSKU: 1ODIE//RAD$62.83PriceQuantity*Call us toll-free at 1-800-638-7421Request a quotePlease NoteWe can not accept returns on any cutting tools or products that may contian cutting tools.