- Most economical way to bore fast holes in wood.
- For tradesmen and homeowners.
- For use with portable electric drills. 1/4″ or larger.
| MODEL 6′ | SIZE | MODEL 16′ | SIZE |
| SPA 1/4 | 1/4″ | SPA 1/4 | 1/4′ |
| SPA 5/16 | 5/16′ | SPA 5/16 | NA |
| SPA 3/8 | 3/8″ | SPA 3/8 | 3/8″ |
| SPA 7/16 | 7/16″ | SPA 7/16 | NA |
| SPA 1/2 | 1/2″ | SPA 1/2 | 1/2″ |
| SPA 9/16 | 9/16″ | SPA 9/16 | NA |
| SPA 5/8 | 5/8″ | SPA 5/8 | 5/8″ |
| SPA 11/16 | 11/16″ | SPA 11/16 | 11/16′ |
| SPA 3/4 | 3/4″ | SPA 3/4 | 3/4″ |
| SPA 7/8 | 7/8″ | SPA 7/8 | 7/8″ |
| SPA 15/16 | 15/16″ | SPA 15/16 | 15/16″ |
| SPA 1 | 1″ | SPA 1 | 1″ |
| SPA 1 1/8 | 1 1/8″ | SPA 1 1/8 | 1 1/8″ |
| SPA 1 1/4 | 1 1/4″ | SPA 1 1/4 | NA |
| SPA 1 3/8 | 1 3/8″ | SPA 1 3/8 | 1 3/8″ |
| SPA 1 1/2 | 1 1/2″ | SPA 1 1/2 | NA |