Coarse 80 Grit Sintered Diamond Burr 10 Piece Kit

The same coarse sintered diamond burrs that I use on the Roys Rocks YouTube channel (https://www.youtube.com/c/RoysRocks).
 
This set is designed for the coarse carving step and can remove rock like it is butter and is an  80 ANSI grit. Ideally suited for the rapid carving of rough material. The shank size is 3/32" or 2.38mm.
They are an absolute powerhouse and will outlast many sets of electroplated diamond burrs and may even last a lifetime with proper use. I've used mine daily now for multiple years with little signs of wear.
 
Instructions can be found on the tool instructions page (HERE), and of course, there is plenty of extra info on the youtube channel.