GC-30 Early Entry Blades for Hard Aggregate
| Diameter | Width | Arbor | Part # | |
| 5" | (127mm) | .095" | Tri | 171948 |
| 5-1/2" | (140mm) | .095" | Tri | 171949 |
| 6-3/8" | (162mm) | .100" | Tri-1" | 171282 |
| 6-3/8" | (162mm) | .225" | Tri-1" | 171950 |
| 8" | (203mm) | .100" | Tri | 171951 |
| 8" | (203mm) | .225" | Tri | 171952 |
| 10" | (254mm) | .100" | Tri-1" | 171953 |
| 10" | (254mm) | .125" | Tr | 171954 |
| 12" | (305mm) | .125" | Tri-1" | 171955 |
| 12" | (305mm) | .250" | Tri | 171956 |
| 13-1/2" | (343mm) | .125" | Tri-1" | 171957 |
| 13-1/2" | (343mm) | .250" | Tri | 171958 |