Bosch MS1233 Crown Stop Kit for Bosch Miter Saws,  Includes Mounting Knobs and Hardware
The Bosch MS1233 Crown Stop Kit for Miter Saws allows for crown molding to be nested against fence for simple miter cuts. Fits Models: GCM12SD, 5312, 5412 (L), 4310, 4410 (L), CM12, 4212 (L), and 4405.