Whiteside 6001X Round Stile & Rail Router Bit Set for 7/32" Thick Panels 1/2" Shank 2 Flute

This rail & stile set is identical to the 6002 with the exception of the panel slot cutter which is 7/32" or 5.5mm instead of the standard 1/4". The reason for this is most 1/4" plywood used for door panels is imported and therefore not exactly 1/4" with 5.5mm being the standard. Measure your plywood before purchasing this set being there may be inconsistency is it's manufacturing.