ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,566, issued on Nov. 18, was assigned to KENNAMETAL INDIA LTD. (Bangalore, India).

"Indexable drill assembly with coolant system" was invented by Ravi Halasur (Bangalore, India) and Mahesh Todkar (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "An indexable drill insert includes a drill body having a central longitudinal rotational axis (CL), the drill body comprising a shank portion and a fluted cutting portion, the fluted cutting portion having a front clearance face and a plurality of flutes, the fluted cutting portion includes a central insert pocket capable of receiving a central cutting insert and a peripheral insert pocket capa...