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Showing results for tags 'drill bit'.
Hi all, Im in diré need of your recos for a great tungsten carbide drill bit I've bought all brands and they keep breaking. Before you ask, yes I've taken all the precautions and still can't find ones that do the job right. Some will work for a couple of times and then break. If you could send me the link to your favorite bits I'd owe you big time. I'm looking for 3/16 and 1/4. Thanks.
My summer hobby this year has been making knives from old files. Not surprising, I really enjoy it! Before starting, I did a lot of research on this forum and others about which file make the best knives. So I've picked up some old Simmonds, Nicholson USA and Black Diamond files at garage sales and ebay. After my first drilling attempt with a large bit (maybe 3/16 size) went off w/o a hitch, I broke it on my second file. Both were annealed, and duh, I wasn't using any oil. However, the subsequent 4 annealed files I tried drilling through dulled the bits very quickly. I thought that smaller wou