Cuts groove for Trend Routaseal.
Position seal into apex of jamb and stop.
More economic to use than more complex seals.
Use with a small 1/4 inch shank hand router.
Use STC for abrasive material.

Specification:
D=5 mm
C=3 mm
OL=61 mm
A=115 degrees
Shank Diameter=1/4 inch