Phillips Scientific can convert your PTFE round rod to hex, sizes 1/4″ upto 2″ sizes, with a +.000″/-.005″ tolerance.
| Finished Hex Size | Original Round Size | Price / Foot |
| 1/4″ | .299″ | $0.38 |
| 5/16″ | .371″ | 0.58 |
| 3/8″ | .443″ | 0.81 |
| 7/16″ | .515″ | 1.14 |
| 1/2″ | .587″ | 1.38 |
| 9/16″ | .659″ | 1.79 |
| 5/8″ | .722″ | 2.19 |
| 11/16″ | .803″ | 2.68 |
| 3/4″ | .876″ | 2.94 |
| 13/16″ | .948″ | 3.66 |
| 7/8″ | 1.020″ | 4.15 |
| 5/16″ | 1.093″ | 4.95 |
| 1″ | 1.165″ | 5.43 |
| 1-1/8″ | 1.309″ | 6.06 |
| 1-1/4″ | 1.453″ | 6.70 |
| 1-3/8″ | 1.598″ | 6.70 |
| 1-1/2″ | 1.742″ | 6.70 |
| 1-5/8″ | 1.886 | 6.70 |
| 1-3/4″ | 2.031″ | 6.70 |
| 1-7/8″ | 2.185″ | 6.70 |
| 2″ | 2.320″ | 6.70 |