| Business | Phone |
| Arco Precision Grinding 6037 E Tecumseh St, Tulsa 74115 | (918) 835-9211 |
| Best Grinding Inc 7904 E 11th St, Tulsa 74112 | (918) 834-8702 |
| Grinding Inc 5434 S 99th East Ave, Tulsa 74146 | (918) 622-6773 |
| Tulsa Centerless Bar Prcssng 1605 N 168th East Ave, Tulsa 74116 | (918) 438-0000 |
| Nimmo Grinding 12515 E 11th St, Tulsa 74128 | (918) 437-1400 |