Amana Tool - Adj. Shaper Tongue/Groove Set (61218), Industrial Grade
Designed to cut precise grooves to provide undersized plywood veneered panels with a snug rattle free fit. For 5.5mm undersized 1/4" plywood. For 5.9mm undersized 1/4" veneered plywood Adjust the panel groove width (3/16" to 5/16") Cut frame stock from 5/8" through 1-3/16" in thickness.