Precision ground steel cutter groove body 3 wing with out tips:

Other bores available, 30mm, 1.25" 40mm - 1-13/16, 2-1/8 available as well larger tool bodies 

Tips sold seperately:

Single Insert for center match flooring Cutter for stock up to 1-1/8"

Min purchase 3 pcs. buy 6 and get a discount, unit costs per insert drops to $34.50

Carbide CNC ground insert from Byrd