I built the kitchen in my cottage using used oak doors and drawers that I salvaged when I installed all the new kitchen cabinets for my ex-wife. This worked great for me, but I had to build 3 doors that I didn't have the right sizes for. I don't have a shaper, just a Porter wire router with a 1/2" collet. This set allowed me to do a job that made me happy. It was a good investment and I was very happy with the result. Better than ordering and waiting. Also economy. Bits are of high qualityβ¦