The Fuller #8 Countersink Set contains five type C countersinks for wood screw sizes #6, 8, 10, 12, and 14 with 3/8" and 1/2" cutting diameters. Five matching taper point drills, 3/8" and 1/2" stop collars, 3/8" and 1/2" plug cutters, and two hex keys are all included in a really nice-looking mahogany case.
Fuller countersinks will last a lifetime if taken care of. The number 8 is our most popular set, favored by wooden boat builders, woodworkers, and other craftsmen.
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Taper Point Drill Size
Recommended Screw Size
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.
it will dull you should get a countersink made for metal
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.
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 luckCapt.Jeff Evans
CAPT. JEFF EVANS
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.
Absolutely not. Get a countersink manufactured specifically for working with metal.
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.
I need a 7/16 countersink do you have this item?
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.
Sorry, my set is on my boat - 80 miles away and I am not sure of the sizes without checking
this is great tool. I like it!
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?
I don't think that you would want to countersink into brass with these. They look like they're designed for wood only.
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.
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.
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.
GERARD DEL MONTE
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.
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
CAPT. JEFF EVANS
is there a quick change adapter for this set ?
mike roper Last Name
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.
Sorry I have not looker for one.Jim T.
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.
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.
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?
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
I think it will do fine. I have used it with teak and fur.
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.
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.
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!
Exactly as advertised. While I haven't used the plug cutters yet, that's soon. I've used the bits & countersinks in hardwood, softwood, drill press, electric drill and brace & bit. Always precise.
I would buy this again.
This kit is packaged in a nice box : ) and allows independent control of hole depth and countersink depth. The countersink head and the collar have dual set screws. I'm truly happy and proud to own it!Thank you,Greg T.
Grand Rapids, MI
I've bought this twice-its that good!
I use these bits in almost every project-they have never let me down. When I expanded my shop I bought a second set.
Ric the Boatbuilder
MI and OH
I would recommend this to anyone.
Excellent product. I had a defective bit and it was immediately replaced without question. Very high quality.
Although the item title is Countersinks, it should be Tapered Countersink like all other hardware resellers. I missed the word taper in the description. If you want a set of tapered countersinks, these are very good.
Fair Haven, NY
I called and had one defective drill bit (C14) that snapped. Looked like a bad casting. Called last Wednesday and asked to have another sent out right away. Still have not received it. As discussed I am sending the broken bit back tomorrow when I get back in the shop. Please send the replacement ASAP so we can continue without having to go out and purchase another.Thank you.David MacLean
Buzzards Bay, MA
Great set in nice box
Essential tool for boatbuilding
it's about time!
I have waited for Fuller to do a 'boxed set' for a long time. Glad to have it; can take it anywhere without losing anything.