HiKOKI 6684762 Eyelet for a wide range of compatible HiKOKI and Hitachi grass trimmers and brush cutters. This replacement metal eyelet fits into the nylon cutting head and guides the cutting line smoothly out of the spool housing while helping protect the line from excessive wear against the housing. Suitable for replacing a worn, damaged or missing original and manufactured to the correct specifications for precise fit. Part 6684762 replaces the previous part number 788-33830-20.