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Old 12-19-2012, 10:54 PM   #21
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All slot head screws that I remove go over the side. A boat is not suited to screws that you cant undo reliably. If I could, I would have nothing but Robertson head on my boat.
The problem is that the screws made today often have smaller diameter heads than the screws made decades ago. That's the situation with the stainless deck screws on our boat. They are #8 flathead, but their heads are half again as wide as the #8 flathead screws you buy today. Which is why I reuse them, because they get a much better purchase on our deck planks which in most areas are right at their minimum thickness due to previous owner sandings and use of chemical teak "restorers."
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Old 12-19-2012, 11:12 PM   #22
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Greetings,
I would deep six all the Philips and their kin as well but unfortunately, Robertson screws are virtually unheard of in the USA. Heard about and got some of these from a Canadian friend-OUTSTANDING!!!! I have heard them called square socket screws and Hatteras screws as well but ask for them in a store and you get plenty of blank stares. Who ever designed Torx fasteners should be locked away. Ya, ya, I fully understand the reasoning behind Torx, but they STILL suck almost as bad as Philips.
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Old 12-19-2012, 11:13 PM   #23
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I think Impact drivers are perfect for removal, but would not use them for replacing screws. For that a regular driver/drill with the capacity to dial down the slip torque is the way to go.

But to the original question. Why not have a tapered end welded onto an 'extender fitting' for the standard driver bits? That way you just have one fitting for the brace, but change the bits as required.
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Old 12-19-2012, 11:31 PM   #24
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But to the original question. Why not have a tapered end welded onto an 'extender fitting' for the standard driver bits? That way you just have one fitting for the brace, but change the bits as required.
You could do that and that is what some of the shipwrights on the GB forum have had to do. But the centering needs to be right on. The other thing some of them have done is machine tapered ends on the shafts of cold chisels. But again, the machining has to be accurate to get the tool centered in the brace and then the chisel end needs to be ground down to the right size for the screw.

The main problem I've run into is that modern driver bits are simply not made large enough for the screws I have to remove. Manual screw drivers are, or course. But the interchangeable bits sold in most stores all tend to be too small for my purposes.

I've gotten a couple of proper brace drivers on eBay but I'd like to get a bigger selection. They are out there in various old stores--- the trick is finding them.
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Old 12-20-2012, 12:16 AM   #25
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Have a look here Diefenbacher Tools Drills scroll down to the second item.
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Old 12-20-2012, 12:19 AM   #26
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Mike--- Thanks for the link. Unfortunately the three bits I would be interested in-- the slotted screw bits-- have been discontinued and apparently are no longer available unless I misread the site.
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Old 12-20-2012, 12:34 AM   #27
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Hi Marin
Sorry about that, did a google search under the discontinued part number and came up with Robert Larson as the manufacturer and available her http://www.toolzone.com/acatalog/Too...aces_3274.html
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Old 12-24-2012, 06:34 PM   #28
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Originally Posted by koliver View Post
All slot head screws that I remove go over the side. A boat is not suited to screws that you cant undo reliably. If I could, I would have nothing but Robertson head on my boat.
Spoken like a true Canadian! I love Robertson square drive too - the bits are slightly tapered, so the fastener stays put on the bit and you can shoot 'em in one-handed! The installer's friend - Robertson screws were all I used in my days as a marine electrician.
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Old 12-24-2012, 06:44 PM   #29
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My brace will screw down to accept almost any square or six sided bit. If I could find one exactly the right size for the screws...I'd buy a slightly larger one and use a file or grinder to make it perfect.

I too agree a brace is one of the best tools for removing screws/bolts in tough situations.
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Old 12-24-2012, 07:23 PM   #30
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When you discover six fluted socket head screws called "Star"or "Torx" head you'll think of square head screws like you thought of Phillips head screws before. But the only application I've seen is for "deck" screws. They may exist but I haven't seen them. For more clamping pressure I sometimes use flat washers w these deck screws. I have seen the square head screws in SS.
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Old 12-24-2012, 07:30 PM   #31
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When you discover six fluted socket head screws called "Star"or "Torx" head you'll think of square head screws like you thought of Phillips head screws before. But the only application I've seen is for "deck" screws. They may exist but I haven't seen them. For more clamping pressure I sometimes use flat washers w these deck screws. I have seen the square head screws in SS.
Eric, Are any of these aka Allen key heads?
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Old 12-24-2012, 07:43 PM   #32
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Well, I relieved the Anacortes hardware store and Hardwicks in Seattle of their entire stocks of brace driver bits. Anacortes had two and Hardwicks had three.

But they are all useful sizes for our boat and with the ones I already had I now have a decent selection. Although I wouldn't mind adding more or even duplicates against the day I break one or one goes over the side.

Both stores had a wide selection of drill bits for a brace but I would not be using the brace for drilling.
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Old 12-24-2012, 08:10 PM   #33
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BruceK,

No. The Allen sockets have six FLATS whereas the star head has not flats but "points". Almost like a spline gear.

If you drew a six pointed star you'd be almost right on.
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