Supplied with an expanding clamping system for use with 3/4" (19mm) mitre slots for horizontal use. This clamping system can be used independently of the featherboard for setting up customised jigs as well. This featherboard can be used vertically as well - just use the bolts supplied with the featherboard to secure it to a fence's t-slot track (as commonly found on many router tables, fences, saw benches, etc).