**Durability:**
- **Hammer Blades:** More robust and can handle occasional impacts with rocks or hard objects without significant damage.
- **Y-Blades:** While durable for their intended use, they may be more susceptible to damage in rough conditions with rocks or heavy debris.
**Maintenance:**
- Both blade types are easy to maintain, as each blade is individually replaceable with a simple bolt and nut system.
- Regular inspection is recommended to ensure blades are in good condition and securely attached.
**Cutting Height and Terrain:**
- Flail mowers cut at a low height (just a few inches off the ground), increasing the risk of hitting rocks or uneven terrain.
- Being mindful of your mowing environment can help extend the life of your blades, regardless of type.