Pairs with both the UMC425 and UMC435 Honda versattach powerheads Honda's innovative SureLoc joint locking system makes it easy to connect attachments with confidence, just push and click to lock your attachment in place, no tools are required Every versattach attachment comes with a handy hook for easy storage, the cap also prevents dirt and dust from building up in the spline Nylon cutting head includes a reinforced metallic insert, for additional durability 2 line bump feed head: tap and go functionality makes it easy and convenient to add more line The trimmer attachment makes your VersAttach Power Head into a heavy-duty trimmer. Whether you are using it for residential or commercial use, you'll find the trimmer offers plenty of power and superior performance, even on tough jobs. Honda's strong low-end torque characteristics allow many jobs to be performed at partial throttle, increasing fuel efficiency.