A groove plane for cutting a groove near the edge of a board, for retaining box or drawer bottoms.
Designed to use 6mm x 6mm HSS cutter bit. Cuts a groove ¼" deep ¼" from the edge.
The main version uses a 1/8" x 1/2" flat bar for the sole, I've included a fully printed version as well for anyone wanting to skip the metal portion.
The flat bar for the sole is two pieces, one 30mm long, the other 120mm long, with a mitre cut on one end.