Ball bearings fitted to both nose and shank.
Allows templates to be placed either on top or the bottom of the material for ease of routing.
Allows for irregular grained timber to be profiled more easily by turning component other way up.

Specification:
D=3/4 inch
D=19.1 mm
C=1 inch
C=25.4 mm
B=19.1 mm
OL=90 mm
Shank Diameter=1/2 inch