Solide carbide bit with a plunge router to cut slots for #8 screws. Screw slots allow for the seasonal movement of larger wooden parts such as table tops. These bits will also cut up to a 7/16" deep recess for the screw head.
We had a little hiccup with a previous order but they reviewed my photos and information and made it right.
I will not hesitate to keep ordering from them in the future
This is if memory serves my 4th shipment from KJP & the 2nd containing Bolivian Rosewood. The product is well packaged, the choice of boards & the milling are top notch. Shop here with confidence.