Ck hss multistepdrill ck tools t3008 centres drills and de burrs thin sheet metal in one operation manufactured from hss for long lasting performance dual flute construction for reduced drilling pressure faster drilling and longer tool life self starting tip three flats on drive shaft for non slip drive in drill chuck cuts hole sizes 6 9 125 152 186 204 225 255 283 amp 305mm pg7 pg9 pg11 pg13 pg16 m25 pg21 ck tools t3008 hss multistepdrill 6 305mm