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counterbore bit

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发表于 2021-8-31 22:26:13 | 显示全部楼层 |阅读模式
need to counterbore some holes for capheads.dont want to buy special bit for one off, will i get away with counterboring with right size bit then using spare bit with end ground flat?cheers
Reply:If you are doing this with a hand drill I'd say no..It will bind..catch..twist..You better have a strong wrist..With a drill press you have a chance and if you have a drill press and the right size end mill you will succeed.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:cheers for that.looks like prob best to get right bit never needed to do m20s before.suppose ill at least have tool just in case.
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