What “common” means here
The table counts machine records in this database with the same reliable nominal length. It is not a sales ranking, a measure of market popularity or a list of mutually compatible saws. Kit and tool-only SKUs count separately.
Machines with only an adjustable length range are not assigned an invented nominal length. Conflicting lengths are withheld. Review status remains visible on the linked model pages.
For model-specific requirements, use the Finder and follow the manufacturer documents linked on the model page.