these at PreciseBits. They have 1/4" shanks. I'll get two or three sizes next month. The 60 degree V-bit will leave a small angle on the basket weave edges. It will also require a 0.002 to 0.004" step-over to leave no ridges on the surfaces. Fortunately, the area to be cut is just 2-3/4" by 10.25". Maybe it won't have to run for a few days. Once I get it to the point of generated gcode I'll test it in MDF to see if it looks acceptable before committing to oak.
The GoPro Hero 2 camera and all the cutters I ordered in the past month drained me for a while. The camera is due to arrive today.