Simple and inexpensive jig. 00:08　Change of groove width 02:29　Circle Cutting jig 02:29　Parallel guide 05:56　Right Angle Guide 07:45　Magnetic Edge Guide 07:03　Long Edge Guide 15:12　Adjustable Routing Template 10:01　Freehand routing 10:01　Flush cut 10:01　Flattening Sled 10:01　Edge Groove Jig 16:38　Router Table Trimmer Brand: Makita Model number: RT50DZ Trimmer bit Brand: HOZLY Model number: 401060025 Double-coated adhesive tape (peelable) Brand: Nitto Denko(Nitto) Model Number: 5000NS Low head bolt (M6)　Shorten it a little before use. Brand: TRUSCO Model Number: Y311-0630 10 trimmer jig https://www.youtube.com/watch?v=A9cDvO2O_K8 Trimmers should be used to trim 2-3mm at a time, not all at once. Pay attention to the direction of travel for the jig to change the groove width. If the right-angle guide slides easily, please put a non-slip backing on the guide. Be careful not to injure yourself. I am still learning English, so my notation may be incorrect.