DrRobert· Premium Member
I looked for 1/4 and 3/8 long enough to use in my horizontal mortiser but they were all too short.Pardon my ignorance but I had not heard of this method. I like it. Found a video on youTube where similarly a guy, using a roughing end mill bit, drill fence, and stop block created some really nice mortises. Although he said it was slower than using a router...it created router like mortises (pretty clean) and would seem to be great for small parts.
I’ve heard people say use 4 flute end mill bits. In my hands not worth a darn.