KOKUYO disc cutter blade receiver DN-600E, 5 pieces, and replacement blade K-28, 2 pieces. I intended to use these with a disc cutter I previously owned, but I never used them and they've been stored away. Blade Receiver: Length: 33cm Width: 1cm I'm not sure which models these are compatible with, as there seem to be several types. Please check if they fit your model before considering a purchase. Thank you for looking.