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Fuller Countersink Set #8
$118.50In Stock
fuller #8 countersinks
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Based on 18 Reviews
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Fuller Countersink Set #8 Customer Questions and Answers

5 of 5 Questions

Question

I have to drill and countersink 34 feet of brass rub rail I will be installing on my new wood launch. Will this countersink set be able to cut the brass without dulling? I know they say they are for wood, but I am not sure if they would be hard enough to hold their edge to cut the brass.

Asked on 03/13/2014 by John DeCarli

Top Answer

Assuming that you will want to install the rub rail with screws every 6 inches or so, I do not se the countersink lasting for 60 plus holes. I think you will be better off with a countersink made to cut brass. Predrill the holes and follow with the counter sink.

Answered on 03/13/2014 by PETER MEISTER
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Absolutely not. Get a countersink manufactured specifically for working with metal.

Answered on 03/13/2014 by CHRISTOPHER CROSBY

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Hi, I sorry but I have never needed to even try to use on brass so I do not know if they will hold up. Jim T.

Answered on 03/13/2014 by JAMES THOMPSON

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I have not used these on brass but I have used them on hardwood, oak & mahogany. Where my first set of countersinks dulled after 2 years, my Fuller countersinks have not shown any signs of slowing down on cutting. Due to the tapered drill bit on these I would pilot hole the brass to screw shank size first. Then I would use light pressure till shaving start showing then increase slightly. if you are pushing to hard you will overheat the bit(countersink part) and brass will melt onto bit hampering the cut. you might have to take a jeweler's file and dress the bit every once and while. Most good hardware stores or welding shops have water soluble cutting solution(oil). I had a machine shop for 25 years and never found camphor bits that had the same angle as wood screws or machine screws. take your time to not tear the brass instead of cutting it. Good luck Capt.Jeff Evans

Answered on 03/13/2014 by CAPT. JEFF EVANS

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If you are just going to be countersinking the brass rub rail, it seems both overkill and wasteful to use a Fuller set. Get a 4-fluted countersink bit whose angle matches your wood screws and set up a jig on your drill press. Put some tape on a tapered drill bit as a temporary depth gauge for drilling into the wood.

Answered on 03/13/2014 by ALEXANDER NAGLE

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it will dull you should get a countersink made for metal

Answered on 03/13/2014 by PATRICK GOOD
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Question

I am fastening a brass rub rail to a sapele rub rail on my 17' Gartside launch. I need to drill and counter sink the rail. Do you think these cutters are hard enough to cut the brass to counter sink the railing?

Asked on 12/08/2013 by Undisclosed

Top Answer

no I believe that you might cut a few holes if you go slow but the angle they are sharpened at is too steep and they will chip and dull promptly. an Industrial supply store(like Granger) will have metal cutting counter sinks that will fit 1/2" drill with a pilot hole the full size of your fastener you should be able to counter sink by hand and make it look professional. practice a few times on scrape to get a feel. I use to camphor by hand every thread hole on cast iron engine blocks with a counter sink meant for metal. Make sure the angle of the tool matches you fastener and the out side diameter is close to your fasteners. Best of luck

Answered on 12/10/2013 by CAPT. JEFF EVANS
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Answer

They'd go through 1/4" brass, but would suffer by losing their edge for all future wood cutting. Use a cutter made specifically to cut metal if you don't want other, more common uses to for the rest of your projects.

Answered on 12/09/2013 by MARY TRAYNELIS

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Typically non-ferrous metals ( aluminum, brass, bronze ) can be cut but you need to go slowly and use cutting oil. I would also use a pilot hole first. I would think a direct inquiry to Fuller would be in order.

Answered on 12/08/2013 by GERARD DEL MONTE

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Could be, but I'd worry that it would dull them. I'd use a standard countersink bit on the drill press with pre-drilled holes in the rubrail.

Answered on 12/08/2013 by ALEXANDER NAGLE

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Brass being a soft metal you might be able to use these cutters. I would drill a pilot hole first. These cutters are made for wood and you might dull them. You Should also slowly feed the drill bit into the brass to avoid breaking the bit.

Answered on 12/08/2013 by ROBERT CARR

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I don't think that you would want to countersink into brass with these. They look like they're designed for wood only.

Answered on 12/08/2013 by BEN BROTMAN
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Question

With this product will I be able to predrill for silicon bronze wood screws to attach planking to flames, as well as cut the hole for my plug, all in one pass? The stop collar is adjustable for different thicknesses of planking?

Asked on 04/02/2012 by Steve Dami

Top Answer

Yes. The key is to select the right size countersink matched with the correct drill bit size. You can set the stop collar to most any preset depths. Sometimes, I have found that I am better off re-drilling the hole in the first plank to the screw size. This way, you don't have to worry about not fully snugging the plank to the frame because the screw has locked up in the first plank. Just be careful not to re-drill clear through the first plank into the second plank or frame!

Answered on 04/03/2012 by STEVEN RICE
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I haven't used this tool for the purpose you describe, but yes: The bits are tapered and will drill for both pieces and the counterbore is adjustable. There's no reason you can't drill frame, plank, and plug bore in one pass.

Answered on 04/10/2012 by SIMON BOUGHTON

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It should work. I used the set in refastening my Rozinante, and it worked well. You will need to be careful in how far you drill the counterbore--it needs to be deep enough to set the bung, but no so deep as to weaken the plank unnecessarily. Some people may not agree to using a single tool in a single pass for this. I have experienced screw holes where the counterbore was set at an angle, whether intentionally or accidentally because a separate countersink was used I can't say. But I think I've read about builders who like the idea of having the fastening at an angle to the counterbore so that the screw is not going to back out. It also makes it almost impossible to get the screw out for refastening, however, so I am very much of the opinion that boring in one operation, though carefully, is the way to go. Good luck.

Answered on 04/02/2012 by JONATHAN MARGOLIS

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I think it will do fine. I have used it with teak and fur.

Answered on 04/02/2012 by DAVID MANN

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Hi Steve, yes you will be able to pre-drill tapered holes and countersink a hole at the same time that will fit a wood plug. I have not used the stop collar but i imagine that is how it could be used. good luck, Ben

Answered on 04/03/2012 by BEN BROTMAN
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Question

is there a quick change adapter for this set ?

Asked on 02/18/2013 by mike roper Last Name

Top Answer

Mike, I have not found a quick change adapter, but have roughed up the shaft of the bits a little so they hold more secure in my hand tightened chucks on my portable drills. They tended to spin loose in harder woods without the benefit of a key tightened chuck.

Answered on 02/20/2013 by Bill S
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i am not sure what you mean by a quick change adapter, but the countersinks come with correctly sized drill bits so that all you do is place them in whatever drill you intend to use without changing anything as it comes from the box.

Answered on 02/20/2013 by CARL TUERK

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Sorry I have not looker for one. Jim T.

Answered on 02/21/2013 by JAMES THOMPSON

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I really liked this kit but used it for very basic work. I am not familiar with the adapter you're asking about but it's not hard to set them up and insert into a drill press. Good luck with your decision.

Answered on 02/20/2013 by MICHAEL EVERETT
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Question

I need a 7/16 countersink do you have this item?

Asked on 01/13/2014 by gene kral

Top Answer

this is great tool. I like it!

Answered on 01/16/2014 by YUNSEUNG CHOI
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Sorry, my set is on my boat - 80 miles away and I am not sure of the sizes without checking

Answered on 01/16/2014 by JAMES THOMPSON

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The only countersinks that come with this set are 3/8" and 1/2". Both are designed to fit over tapered drill bits that fit specific screws, and the set includes plug cutters for the countersinks. But no, there is not a 7/16" countersink in this set.

Answered on 01/13/2014 by ALEXANDER NAGLE
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