The Fein 35222952050 Adapter Set is designed for mounting Starlock accessories on older FEIN SuperCut machines with QuickIN tool mounting. It is suitable for FSC 1.6 Q, FSC 1.7 Q, FSC 2.0 Q, AFSC 1.7 Q and AFSC 18 machines and includes the adapter and clamping screw required for fitting compatible Starlock accessories.