This rail connector is a wide, sturdy piece for quickly connecting rails in the Bosch track guide system. The system works with the Bosch chainsaw. The FSNVEL is a top-mounted and self-aligning connector that ensures precise work, even with connected rails. The rails (sold separately) are precision straight and manufactured to exact tolerances. The tracking system allows precise end-to-end cuts and plunge cuts, and it is precise and easy to work with. The chainsaw together with the rails can be an easier to transport alternative to a table saw to a construction site. The cuts are table saw quality, virtually no splinters.