Outer Hole Diameter: 1/2 Inches. Outer Hole Center to Center: 5 1/2 Inches. The item "Woods finish mower blade kit high suction 1001513KT" is in sale since Wednesday, April 05, 2017.This item is in the category "Business & Industrial\Heavy Equipment Attachments\Mower Decks". The seller is "krenck" and is located in Guilford, Indiana. This item can be shipped to United States.