1.) Heavy-duty spool has a metal plate molded into the end of the bump knob for extended wear
2) Heavy-duty spool can be ordered as a complete string head or as a replacement spool –
replacement spool will fit in heads
3.) String heads are easier to open than previous models – when unit is opened, the spool
remains in cap and spring is retained in housing
4) Slotted eyelets provide easier loading
5) Construction allows for easy, straight, push-back reassembly once string is wound – design
eliminates loose components
6) This design operates with less vibration than previous models
7) String heads are designed with replaceable components, as with competitive string heads, for easier service – eyelets, arbor nut, and spring are all replaceable where needed
8) Comes with steel insert – greatly increases the durability of string head, especially in commercial applications with heavy ground contact
