Title: Did not perform
Review: This bit would not drill out from 1 1/4th hole. I had to buy the USA bit from the same vendor and it had no issues drilling out from as small as 7/8ths. Now I had also purchased 1 1/8 and 1 1/4 in the Chinese bits. The 1 1/8 would work fine but I could not drill out 1 1/4 from the 1 1/8. Hit or miss I suppose. I tried sharpening the 1 1/4 bit to no avail, so I bought the American bits from the same vendor to get the job done. The was all on a drill press at 250 rpm into 5/8 hot rolled steel. I am sure wood or Aluminum would work fine for these bits. These are not the same as the Harbor Freight Sterling and Deming bits which are of much better quality as I was able to drill up to 1" (largest size)with those with no issues.
Is this product review negative?