This bit can be used for cutting both a tongue and groove based on how the wood is aligned with the cutting edge. One bit makes both cuts with a tongue width of 9/32". Recommended for a material thickness of 1/2"-13/16".
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.