29 bits from 1/16 to 1/2 by 64" ; 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 tight chuck grip; High performance on stainless steel