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Review on πŸ’ͺ Efficient Drilling with the 8 Inch Cobalt Aircraft Extension Drill Bit by Radney Taala

Revainrating 1 out of 5

Got used bits, some cobalt some not#?!@%?!

I received five 6 inch bits but as you can see in the photo they are all used. The photo is what I saw when I opened the package. I hardly believed it. If you look closely, the one with drywall inside is clearly not cobalt, just a standard high-speed steel bit easily distinguishable on the surface. I bought the same set a few months ago and received five new cobalt bits which I have been completely satisfied with.

Pros
  • βœ”οΈ COBALT MATERIAL: HSS (M35) Cobalt Steel is a high quality material with high hardness and red hardness for long life and fast drilling.
Cons
  • I don't remember but there was something