insert carbide grooving triangle with hole. coating titanium nitride. used for metalwork. on blue background. top view

insert tool tac carbide cutting accuracy machine metalwork cutter chamfered industry metal steel manufacturing cnc factory precision technical drill milling turning workshop reamer carbon lathe grooving chipbreaker production boring rhombic solid technology engineer automotive mechanic design alloy hardware background regrinding hole holder angle jig fixture center edge triangle hole coating titanium nitride used metalwork isolated blue background