10.5" FACTORY Center Fin Channel Box

10.5" FACTORY Center Fin Box Flangeless center fin box for longboards, Stand Up Paddleboards, single fin shortboards, etc. This 10.5" Center fin box is installed before laminating or after the seal coat with the Longboard Center fin Router Jig Install Kit Dimensions: 10.5" long x 1" deep Specify Black or White color fin box when ordering You can also make your own center fin router install jig templates below:Print both pages full scale, tape together, transfer the pocket outline to 1/4"- 1/2" thick plywood  10.5" Center fin box router template for use with a 1/2" diameter router bit with 1/2" pattern bearing on top (page1, page2) 10.5" Center fin box router template for use with a 1/2" diameter router bit with 5/8" Outside diameter router collar  (page1, page2) 10.5" Center fin box router template for use with a 1/2" diameter router bit with 3/4" Outside diameter router collar  (page1, page2)