The accurate knowledge of mechanical properties of micrometer sized materials has become fundamental for applications. Recently, a pillar splitting method has been applied for the determination of the fracture toughness. Micropillars are fabricated by focus ion beam and then indented up to failure. To date, this method has been applied only for a standard Berkovich tip and for a small number of materials. Here, we produce micropillars on different materials involving Si, SiO2, CrN, TiN, and BN, while studying the effect of the indenter geometry using 4 tips with angles ranging from 65.03° down to 35.3°. Finite element simulations (FES) are also performed accounting the effect the indenter geometries. We show that the fracture toughness can be easily extracted, while the splitting load decreases for sharper tips. Furthermore, FES carried out on different tip geometries enable an easy relationship between the failure load, pillar radius and fracture toughness.