I just bought my first plunge router. I am trying to install a Kregg clamp plate in my work bench. I only need to do about 1/4" deep into the table top. The pattern bit I bought at Lowe's has a 1" cutter. The bearing does not touch the pattern when I use a 3/4" pattern. I made a pattern out of 2 x4's and its too high. I don't have a planer. My question is, "Do pattern bits come in varying lengths for the cutter?" I hope this doesn't sound stupid but This is all brand new to me. This is my first post on any forum. Bail me out please!