CNC stubbing / milling wheel for granite and marble.
Available in 4 different sizes 85mm, 87mm, 100mm and 120mm.  Inside hole diameter: 50mm with 20mm long diamond segments. Segment grit 50.
Great value!
For better efficiency both sides of the wheel can be used.
Suggested RPM 5500, max RPM 7000.
 
Avaialble in a set of 3 PCS.