5.0 out of 5 stars Very robust drill bits
Reviewed in Canada on March 30, 2022
I beat on these things, bordering on abuse, and they last. I've been drilling holes in 304 stainless and they are lasting about 10x longer than normal Titanium Nitride coated HSS drill bits. I'm very impressed.
Reviewed in the United States on July 8, 2019
I was frustrated with the quality of drill bits I found locally Could not get through a single job with a single drill bit So I ordered 10 of these expecting to burn up one or two To my shock and surprise the first bit cut through the metal quickly and was as sharp as when I started with it