Trend GB240 Guide bush 24mm dia x 10mmGuide Bush MetalGuide bush guides the router when using a template. Fits directly to Trend T3,T4,T5,T5 MK2, 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.Longer spigot on bush gives increased control.Ideal for use with Trend Hinge jigs with a 20mm diameter cutter for radius hinges.Specification-Outside diameter=24 mmInner diameter=22 mmProjects from plate=10 mm