These inserts fit the Bosch 4000 and 4100 table saws.
Model BH-1 features a pre-cut slot to accept the riving knife. Model BH-2 is solid and is used for dado or angled cuts. Both inserts measure 13-9/16"L x 3-3/4"T x 7/16"T.
For step-by-step installation video CLICK HERE