| Business | Phone |
| Advanced Machine Co Inc 4450 W Belmont Ave, Chicago 60641 | (773) 545-9790 |
| Erva Tool & Die Co 3100 W Grand Ave, Chicago 60622 | (773) 533-7806 |
| Tool Mart Inc 6211 W Touhy Ave 2, Chicago 60646 | (773) 775-5430 |
| Gmc Brothers Tool Co 2712 N Elston Ave, Chicago 60647 | (773) 227-3101 |