These handy aluminum angle guides also have multiple small holes that are perfect for doing template work on the router with a small flush trim bit. Create the perfect “press fit” opening on your custom installation parts like I/R repeaters, switch panels, rear load LED’s, diagnostic displays, panel mount RCA jacks, and other cosmetically critical applications. Available in 8” and 12” versions. 8” version has holes from 1/32” to 31/32” and 12” version has holes from 1/32”-1 3/8”.