|Drilling is important machining process occupied over 30% in manufacturing industry. But, drilling process have many problems, such as decreasing of machining accuracy, quality of surface roughness and roundness, etc. Therefore many studies are carried out to solve these problems. In this study, three multi facet drills(MFD) which are improved chisel point shape of standard drill(STD) are developed. Performance of multi facet drills(MFD) which is developed in this study is discussed viewpoint of surface roughness, drilling force, roundness of machined hole and chip shapes. From obtained results, it is confirmed that performance of rough flute drill(RFLD) type is most excellent among used multi facet drills.