Guide bush guides the router when using a template.
Fits directly to Trend T3 T5 T9 T10 and T11 and some other light duty routers.
Will fit other makes when used with GB/5 GB/PLATE or UNIBASE Sub-base.

Specification:
Outside diameter=7.8 mm
Projects from plate=4 mm
Diameter of plate=60 mm
Csk screw hole centres=50 mm