MK-7501-30 Joint Widening Blades for Cured Concrete
| Diameter | Width | Arbor | Part # | |
| 12" | (305mm) | .187 | 1" | 169884 |
| 12" | (305mm) | .220 | 1" | 169890 |
| 12" | (305mm) | .250 | 1" | 169896 |
| 14" | (356mm) | .187 | 1" | 169902 |
| 14" | (356mm) | .250 | 1" | 169908 |
Joint widening blades do not have undercut protection.
Blade Spacers MK-7501-30 Joint Widening Spacers
| Diameter | Width | Arbor | Segment Width | Part # | |
| 8" | (203mm) | .032 | 1" | .125-.187 | 169943 |
| 8" | (203mm) | .064 | 1" | .220-.250 | 169944 |