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i have spent lots of time and money over the years looking for a drill bit that will penetrate hard metal,that wont go blunt after the first attempt,that wont break or overheat.i work on cars and bikes and need bits that can drill into aluminium,mild steel,heavy steel and can drill into broken studs etc,never found one yet,until now! i bought these hoping for the best and was deeply impressed! i tried these out on an eighth of an inch steel plate using 3mm drill,it went thru like a hot knife thru butter,moved up to 6mm,same hole,ripped thru with no effort! moved up to 9mm and same again! straight thru,very sharp,very straight,i would`nt buy anything else,wow!
Verified purchase: Yes | Condition: New
appears to be a good value for money product
Verified purchase: Yes | Condition: New
Great just wish I hadn't lost them all, shame there not on a long piece of string
Verified purchase: Yes | Condition: New
Anything by Irwin is always top class and these drills are no exception.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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