The Yonico 14133 flush trim Router bit is great for combined plunge-cutting and pattern and template routing. For increased work piece visibility, use the shank bearing flush trim router bit in a handheld router allowing the template to be positioned on top of the work piece. In a router table, template will be positioned underneath the work piece. The Yonico 14133 flush trim router bit can be used without the bearing as a standard straight bit. 2-flute carbide cutters with enclosed ball bearing. 1/2 in. shank. Flush trim template router bits work in your router table or handheld router. Secure your template to the top face of the work for handheld operations, or to the bottom face of the work when using a router table. It's helpful to have at least a couple of flush trim bits in different sizes in your router bit collection. 1/4 in. and 1/2 in. Dias make a good combination.