Guide bush guides the router when using a template.
Fits directly to Trend T3 T5 T10 and T11 and some other light duty routers.
Will fit other makes when used with GB/5 sub-base.

Specification:
Outside diameter=13 mm
Inner diameter=10 mm
Projects from plate=5 mm
Plate diameter=60 mm
Csk screw hole centres=50 mm