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I have a set of SKF Dormer, #80 to #61, #80 is .013" I do not pull them out that often.
The cobalt drills are quite good but can be brittle, solid carbide even better but really brittle. For hand drilling just need to know when to resharpen before burning the end off.
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Last edited by 908/930; 12-10-2020 at 10:04 AM..
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