That's right--show some respect: Vintage flathead screwdrivers is for openin' paint cans!(Psst. Inside tip. -- If you have to use a screwdriver for a punch, don't tell us. Blame it on your wife. That's how we roll here.)




Very interesting. I've not seen those before. I'll keep my eyes open and let you know if I run across any at auctions etc. Nice collection.I started collecting these Williams obstruction wrenches several years ago. The set consists of 34 wrenches. I need eight more to complete the set.
Jim C.
Thanks and good luck! These wrenches are not the easiest things to find. I think Williams started making them in the 1920s. I’m not exactly sure when they were dropped from their product line. Maybe 1930s, 1940s?? Others may have different experiences, but based solely on my experience, I think they’re not very common.Very interesting. I've not seen those before. I'll keep my eyes open and let you know if I run across any at auctions etc. Nice collection.
Definitely not common. If you and I are any kind of valid informal (but statistically unreliable) indication, when last we compared notes on these types (May 2022, posts #1085-1087, page 28), you needed 12 wrenches to reach 34, and I only had a total of 5 wrenches in my collection. In the interim - a little less than 3 years, you found 4 and I found 3. I'd say that's about the same pace.I need eight more to complete the set....[ ]...Others may have different experiences, but based solely on my experience, I think they’re not very common.
They're 75*, Jim.The wrench heads are all angled at 85 degrees on both ends.
They last appear in the 1931 catalog and they're not included in the 1937 catalog, so, sometime in between 1932 and 1936.I’m not exactly sure when they were dropped from their product line. Maybe 1930s, 1940s??
Thanks. Too bad the branding is filed/ground off.^Blue-Points Chicago oldie there Lugz
1990 "SPECIAL". AA also has a 1990 "SPECIAL" (9/16" x 1/2") with a US Army Ordnance Dept drawing number (A183907) on it. They don't identify the number as anything more than generically "military" but I know it's an ORD number. (I have the reference for an A183908 wrench in my ORD 5 SNL J-4 catalog and it has weird angles, too.) I suspect your NAF wrench is the Navy equivalent to the A183907 and I would guess the offsets are afterfactory. Also guessing late 1941 or early 1942 with the CHROME-ALLOY comp and the cad finish.AA lists the 1990 as a 5/8 x 5/8 brake wrench.
This has two offset bends.
# NAF 310322-1
For sure. If the bends are factory, it would mean they made two different 1990 Specials, one with bends, and one without. Not arguing with you. Just tough for me to rationalize that.I assumed they were factory. Had to be for some tough to access work.


That's right. Williams never made carbon steel versions of the obstruction wrenches. Instigated by the massive success of the Bonney CV line, Williams made a big deal out of calling the CM composition better when they introduced it in 1925. First they converted all the older wrench types into the new 'Superrench' line, then they added new types. I haven't done it in a long time, but Google Booksing "Williams obstruction" will result in dozens of ads and notices in 1927 and 1928 trade mags introducing them. The ads and notices are an interesting read. They say they were directly inspired by automotive engines and eliminating the need to remove parts just to get at one fastener. They are also a fun read. They "ghost" (or "troll," these days) Bonney's design by emphasizing the ergonomics of both heads on the same side not putting jaws jabbing into your hand or arm.The earliest document I have currently showing those obstruction wrenches is dated 1927,
Since my shop and cabin are full!Since when does need come in to it?
Want is enough.
Nice, Jim! You've surpassed my collection. Haven't found a single new wrench in years.I started collecting these Williams obstruction wrenches several years ago. The set consists of 34 wrenches. I need eight more to complete the set.
Jim C.
Yes sir, I remember. Sorry I pushed you into that rabbit hole 10 years ago. lolGeorge, you got me started on collecting these wrenches. That was a while back. As you know, it’s a very tough set to complete. With eight wrenches still to find, I do wonder if I’ll ever finish it. I don’t think I’ve ever seen a complete set. Like you, I do occasionally use them, mostly to work on vintage woodworking machinery. I have a lot of duplicates.
Jim C.