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post #1 of 5 Old 01-10-2013, 09:09 AM Thread Starter
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Countersink drill bits

I have a cheap set of Ryobi bits that drill, countersink, and counterbore. They've worked well enough when I was mostly working with pine and MDF, but now that I'm doing more oak the #8 I used most frequently has worn out, and one piece on the bookshelf I'm putting together has some nice HSS bit fragments holding it in place instead of screws. I think one pack of replacement bits is enough to decide that the countersink part is too dull to be any good anymore.

What brands do you guys like for the combo bits? I see Woodcraft stocks a Made in the US brand called Snappy, but there are few reviews. They have tapered and straight.

Alternatively, should I just get 'plain' countersinks and drill and counterbore with standard twist bits? I only ever break these countersink bits, so I'm not sure if they are normally different materials or just the action makes it more likely to break.
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post #2 of 5 Old 01-10-2013, 09:38 AM
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I use a carbide tipped countersink with a replaceable bit, like these.





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post #3 of 5 Old 01-10-2013, 10:47 AM
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There are a couple different types of tapered drill bits. Some have one flute, others two. The single flute ones are usually inexpensive imports and not very strong, prone to breaking. With tapered bits, you have to back out and clear the waste frequently, particularly on long bits. Several companies make the all in one tapered bit, countersink, counter bore bits, often with a stop collar. Some make carbide tipped countersinks, like Amana. I use Insty bits with the hex shank and quick release chuck. Haven't broken one of their bits and I've used them hard for years. I don't use them as counter bores very often and don't like stop collars. The countersinks can be used on normal drill bits. Some have replaceable tapered bits, others have non replaceable hex shank bits which usually give more reach.
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post #4 of 5 Old 01-10-2013, 10:49 AM
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I picked up a couple of Dewalt countersink bits. I like them but can't find them now. I may try the carbide ones though.
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post #5 of 5 Old 01-10-2013, 12:24 PM
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Quote:
Originally Posted by Gilgaron View Post
I have a cheap set of Ryobi bits that drill, countersink, and counterbore. They've worked well enough when I was mostly working with pine and MDF, but now that I'm doing more oak the #8 I used most frequently has worn out, and one piece on the bookshelf I'm putting together has some nice HSS bit fragments holding it in place instead of screws. I think one pack of replacement bits is enough to decide that the countersink part is too dull to be any good anymore.

What brands do you guys like for the combo bits? I see Woodcraft stocks a Made in the US brand called Snappy, but there are few reviews. They have tapered and straight.

Alternatively, should I just get 'plain' countersinks and drill and counterbore with standard twist bits? I only ever break these countersink bits, so I'm not sure if they are normally different materials or just the action makes it more likely to break.
the best and only one's i use are made by fuller and they fit tight with the plug cutter, their are some out their that are brand X and not worth the money loose fit and what i call junk, i made the mastake and got the brand X and i thro them away their were so bad , here is the link you can get the tappered drill bit to go with what ever size counter sinker ect just look around on the site, now some supplyers carrier those but what and make sure they are fuller , the link http://www.wlfuller.com/html/countersinks.html
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