... bar(wolfram bar) ,is extensively processed into Reamers, Drill Bits, Milling Cutters, Endmills, Face Millis, Shell Mills, Burs, Boring Cutter, Countersink ... Cutters, Gun Drills, Thread Shavers, Gravers, Solid Engraving Tools, Solid Burrs,. All our carbide rods are made from Extrusion ...