Tungsten borides for their potential as superhard materials have become subject of interest recently. Much emphasis has been put in processing them in low pressure conditions. The aim of this study is to synthesize bulk boron-rich tungsten metal borides by using spark plasma sintering. Elemental tungsten and boron powders are mixed and ball-milled for 6 hours into two different compositions (B/W=2.5 and 4.5) and then sintered at temperatures 1100 °C, 1200 °C, 1300 °C, 1400 °C, 1600 °C in argon atmosphere by using spark plasma sintering. Different phases such as WB, W2B5, WB2, WB4 are formed. The phase analysis has been done by X-ray diffraction. Elemental composition of the phases formed is analyzed by EDS analysis. Microstructural investigation has been done using scanning electron microscopy. It is also found that the some of the phases formed are very hard by using macro, micro and nanoindentation hardness measurements.