Replaces Honda OEM Part Numbers: 72523-747-000, 72522-747-000, 72521-747-000Fits models HS521 & HS621. 6 piece set.Sprial Height: 10-1/2"Sprial Width: 5-5/8"Spiral Hole Diameter: 15/32" x 3/8"Paddle Height: 8-5/8"Paddle Width: 1-7/8"Paddle Hole Diameter: 3/8"Thickness: 9/32"
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