Match the material path
- Use the steel kit for the V-groove steel drive-roll path.
- Use the aluminum kit for the U-groove aluminum drive-roll path.
- Confirm system package and wire size before ordering.
Miller lists separate 1/16-inch OptX conversion kits for steel and aluminum. Each kit includes conduit, the matching drive roll kit style, and a 10-pack of contact tips.

| Part number | Kit | Includes | Primary path |
|---|---|---|---|
| 301827 | 1/16-Inch Conversion Kit - Steel | 11-ft wire conduit, V-groove steel drive roll kit, 10-pack contact tips | OptX wire feeder support |
| 301828 | 1/16-Inch Conversion Kit - Aluminum | 11-ft wire conduit, U-groove aluminum drive roll kit, 10-pack contact tips | OptX wire feeder support |