Conduit Bender Head EMT Conduit Size - Aluminum and Galvanized Steel 3/4 in EMT Conduit Size - Stainless Steel Not Applicable Rigid/IMC Conduit Size 1/2 in Material Iron Compatible with Grainger Part Number 10F491 Compatible with Manufacturer Model Number 74-019 Accessory Type Bender Head Includes Convenient Bending Guide Head and Handle