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    Jacobs' Physics of Tools Debate Corner

    Agree. I'd be curious to know whether Stiletto made tests regarding titanium head weight and handle length before settling on the current designs for production.
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    c. 1949 Whale Tool Corp "Pli-Rench"

    Has anyone done tests on how well the Whale Tool models grip variously shaped items compared to the Petersens? Instinctively I distrust moveable gripping surfaces, but that may be pure prejudice.
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    Jacobs' Physics of Tools Debate Corner

    Well, Lugz, arriving here from the Stiletto thread, I'd say I made my point over there: higher speed of swing, thanks to a lighter hammer head, yields more sluggo on the nail head and probably less wear and tear on the arm joints. This is interesting, but I'm no metallurgist nor physicist and...
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    Stiletto

    Lugz, thank you! I see I erred in calling "force" what is really kinetic energy. But setting aside that error — for which I'll go stand in the corner and sand splintery wood by hand — I'm not incorrect regarding the energy delivered to the nail head. And for lack of knowledge I ignored the...
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    Stiletto

    Looking forward to checking out (getting lost in?) that thread, Lugz. However, F = mv^2. Or in English, force equals mass times velocity squared. In short, velocity is the dominating factor, not mass, because even small increases in velocity due to a faster hammer blow deliver more force to...
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    Stiletto

    Me? I don't have one. Too damn $$$ — and I don't swing a hammer for a living anyway. (Retired from a different business.) If were in the trade, however, I might have one just to feel complete or something. Your solution clearly works just fine. But if anyone is going to swing one regular-like...
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    Stiletto

    Force (as in hammer-to-nail) goes up as the square of the velocity with which the hammer head hits the nail head. A titanium-head hammer can be swung at higher speed than a steel head, especially when the titanium head is combined with a longer handle, as in most framing hammers. Shorter...
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    Show Your Vintage Knife

    You get used to the thickness. I carry one of these "camper knives" in my right rear pocket (with a handkerchief) every day. Mine's a Camillus Army engineer's knife from sometime in 1942-44. It has one of those can openers like what's on the Ulster and Remington. I've yet to try that, though!
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    Found some B&C 3/4” C-Clamps!

    Liberty-head dimes. Wish we could bring that design back.
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    Screwdriver Decision Fatigue

    Homeowner/DIYer here. I have a ratbag of old beat-up slotted screwdrivers, about half with those square wood handles from back in the day. For Phillips, the drivers I had were especially bad, so I read up (here of course) about Vessel's not-really-JIS-anymore-but-better-for-PH drivers, so I got...
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    Does anyone wear shop aprons?

    I have a denim apron with one top-center pocket, made by my wife 45+ years ago. The pocket is for the pica rule that letterpress printers often carry. Since then the apron has shifted from the press (8x12 chase, treadle-drive platen Chandler & Price) to the work bench. I should use that apron...
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    Multi-bit screw drivers… I feel like I’ve been screwed

    I bought the Klein 11-in-1, tried it for a while, and it now sits unused. I'll probably just give it to the local ReStore. I could never accurately "map" reliably which bit was in which tube, and how to get to it, which is essential if you are going to make good use of the thing. That...
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    Tiny vise grips?

    Another solution to the screw-extraction problem — if there's any length sticking up — is the old-style gas and burner pliers. These have small openings with teeth on the very nose of the jaws. See the inset part of the photo below. For example, see...
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    Solution for Lost Pocket Knives

    Another useful site for scout knife history with photos is http://www.scoutknives.net/index.php Be sure to check the links in the menu at left.
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    Books!

    "You can trust your car to the man who wears the star...."
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    Solution for Lost Pocket Knives

    Looks useful, but I wish everything boaty didn't cost so much more. I have a rope knife which I mainly use for cutting up cardboard boxes. It's a WW2 vintage "life boat" knife made by Camillus.
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    Antique curved Stanley file. Has Anybody seen this?

    Mine's 14 inches long by 1-1/4 inch wide, and double sided with a hole at each end. But it's not at all flexible. Judging by the state of the teeth (sharp), it hasn't seen much use at all before I got it. I've used it a little, but the lack of a handle/holder for it — you're using two rags...
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    Hobbymat Lathes

    Long, possibly off-topic comment follows, so scroll on if it's not of interest — When digital SLRs went Big, a lot of people dumped their film SLR gear. It's kind of like the way you'll find loads of corded hand tools in the ReStore shops, along with old cordless ones that have...
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    Antique curved Stanley file. Has Anybody seen this?

    I bet it would be of use to mould makers and pattern makers too.
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    What do I have here - Taiwan Vice ?

    If you have trouble securing a washer in that thin groove, consider two alternatives: a hairpin spring or an E-clip. I had a similar problem with a Craftman vise, and the process of extracting the retaining washer ended up damaging it enough that it would be hard to reinsert and tighten. See...
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