Bosch FSN RA 32 Adapter for FSN OFA with 32 mm Hole 1600Z0003X RA 32, for a 32 mm hole layout without CNC machine This additional adapter, specifically for use in conjunction with the FSN OFA attachment (sold separately) is designed to create a 32 mm hole layout for furniture-related applications when using a plunge router with the FSN Guiderail system. FEATURES For use in conjunction with the FSN OFA attachment Creates a 32 mm hole layout for furniture related applications Spring Loaded detent button and fence