This 'roughing' trimmer leaves an overhang of 3mm for secondary final trim.

Specification:
D=1/2 inch
D=12.7 mm
C=1 inch
C=25.4 mm
B=19.1 mm
E=3.2 mm
A=90 degrees
OL=81.5 mm
Shank Diameter=1/4 inch