Countersinking

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Old 10-26-13, 08:38 PM
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Countersinking

What's the norm on countersinking screws? Countersink then drill the hole/pilot hole or drill the hole then countersink with a countersink bit?
 
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Old 10-26-13, 08:42 PM
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I usually drill the hole first and then countersink it.
 
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Old 10-26-13, 08:43 PM
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Use a countersink that comes with a pilot drill bit?



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Old 10-26-13, 08:55 PM
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That's what I usually do but I came across a few videos online where they countersunk first then drill the hole
 
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Old 10-26-13, 08:59 PM
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What about boring a hole? Which comes first?
 
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Old 10-26-13, 09:36 PM
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You lost me..... I thought boring and drilling are the same thing.
 
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Old 10-26-13, 10:02 PM
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With foster drill bits!! Just adding characters so I can get the 25 character minimum lenght
 
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Old 10-26-13, 10:18 PM
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You mean forstner bits?

With a bit like that you would have to bore/drill the hole first.
 
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Old 10-27-13, 12:08 AM
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If you are in need of a counterbore (stepped hole) with a Forstner (always capitalized) bit then the larger hole is drilled first. When using a standard countersink always drill the pilot hole first because the very tip of the countersink doesn't have any cutting edge and will heat up quickly.
 
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Old 10-27-13, 08:25 PM
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Damn Johnnie Walker Thanks all at least now I can set myself a standard
 
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