8 drillbits : 9/16" -13/16" -5/8" -7/8" -11/16" -15/16" -3/4" -1" on 1/2" shaft; Made of high-speed steel grade HSS/C05 and Cobalt M35 surpassing the M2 standard; Self-centering *SPLIT POINT*; Excellent resistance to shock with greater flexibility; The 6 face shank “HEX SYSTEM" prevents slipping and provides a tight chuck grip; High performance on stainless steel