I am retired from the aviation corporate jet manufacturing industry. Only the best drill bits were used in the manufacturing of the jets. They last forever, with only sharpening. This drill bit looked and felt exactly that good. Then I used it and WOW, it brought back memories of those highest quality bits. I absolutely know this bit will be with me forever. About time I found a bit that will not dissaspoint after one or two uses. Two thumbs up.
Rating: [5 of 5 Stars!]