Suits most makes of scarifiers with a single 1/2″ bolt hole. SK15805D – 5″, SK15806D – 6″, SK15807D – 7″, SK15808D – 8″ Use with SK15802C Clip. For your nearest Tillage Tools Australia Distributor Phone: 0418 587 052 or Email: admin@wimmeramalleeag.com.au