Designed to work with any 4 mm hole blades for SAB Goblin 630, now you can use any blade from Edge, Radix, Spins, Align ... and stop worrying about the availability limit of 5mm hole blades on the market.
Package inlcudes:
(2) x 5mm to 4mm top adapter
(2) x 5mm to 4mm bottom adapter
(2) x 12.9 M4x32 special screws
(2) x M4 lock nut