Oregon 544856 PowerSharp STARTER Kit PS56/1 NetSuite-ID_538188 1/2" x 103-15/16"

1/2" x 103-15/16"

Ryobi RY422 and Greenworks 21362

Center hole: 11/16"

Bore: 3/8"

21" Many parts look similar

Oregon 544856 PowerSharp STARTER Kit PS56/1 NetSuite-ID_538188 1/2" x 103-15/16"Now you can sharpen fast, easy, and on the saw with the PowerSharp system. Includes the 91PS PowerSharp chain; a guide bar designed for PowerSharp; and the PowerSharp bar mount sharpener. Go from dull to sharp in just three seconds. Many parts look similar, so its crucial to ensure youre choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct