Knife-thin 9mm open-end wrench
12-10-18, 10:49 AM
#1
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Knife-thin 9mm open-end wrench
Is there a 9mm open-end wrench that's only ~2mm thick? I have a set of wrenches that are 3mm thick but they're too thick. You might be able to slip a butter-knife into the slot that gives me access to the wrench flats.
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12-10-18, 11:00 AM
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Break out a belt sander and take one down to what you need. Be careful and don't go too fast and ruin the temper and don't shoot the thing into a wall or worse - yourself - ask me how I know. I don't know of any wrenches that thin. If you don't have a belt sander a piece of 150 grit sandpaper on a board and rub a millimeter off one of your wrenches. Take your time and do both sides to keep it equal. If you want to keep it nice looking polish it out with 220 then 400. You can put a nice finish on most tool steels and it can even look "factory" if you take a little time and do it right. If you use wet/dry emery paper a little oil won't hurt and I bet the entire job wouldn't take more than 20 minutes.
12-10-18, 11:30 AM
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My Park and Campy cone wrenches measure 2 mm (0.082") thick but I've never seen one with an open end smaller than 13 mm.
12-10-18, 12:06 PM
#4
Banned
it would be cut out of sheet steel , (or sacrifice a butter knife)
you can go DIY on some 1/16th thick steel sheet ,
with a sharp file, that has a toothed edge,
(or stack a few hacksaw blades in the saw, for a wider cut)
and bench vise, to hold it.
... if no one does a web search for you, and finds something.
/...
you can go DIY on some 1/16th thick steel sheet ,
with a sharp file, that has a toothed edge,
(or stack a few hacksaw blades in the saw, for a wider cut)
and bench vise, to hold it.
... if no one does a web search for you, and finds something.
/...
Last edited by fietsbob; 12-10-18 at 12:15 PM.
12-10-18, 03:42 PM
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My Park brake caliper wrenches (BCW-n; 8mm/10mm, 9mm/11mm) are 3mm thick, which apparently is too thick. I do have an old, long out-of-production 8mm/9mm Artisan Tool & Die brake caliper wrench that is only 2.5mm thick. Might be tough finding one, though. Grinding down a thicker open end wrench is probably your best bet.
12-10-18, 04:03 PM
#6
Banned
on grinding..
Have a pot of water handy , (old school) as grinding heat
can soften tempered steels ,
so dunk the work in the water frequently and that won/t happen
can soften tempered steels ,
so dunk the work in the water frequently and that won/t happen
12-10-18, 04:53 PM
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Plan Epsilon Around Lake Michigan in the era of Covid
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Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
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Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
12-10-18, 05:37 PM
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Park CBW-4 or Park OBW-4 should do the trick.
12-10-18, 06:20 PM
#9
like we used to say
Ignition wrenches come in 9mm and are slim profile like that.
12-10-18, 06:42 PM
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One thing to consider is to step back and think...why would a designer make something that requires so thin a tool when servicing? When such a rare tool is almost non existence.
One thing is that it is quite possible that you are doing something wrong in your assemly/disassembly of somehting.
I had similar situation working on a internal gear hub. At first, I thought I needed a wierd shaped thin wrench. But working on it and wrecking my brain for a while, I realized I didn't need such a wrench. It's not designed to be needed for remove. I was not doing the proper way of assembling it. Once, I figure out the proper way...the special wrench was not needed.
One thing is that it is quite possible that you are doing something wrong in your assemly/disassembly of somehting.
I had similar situation working on a internal gear hub. At first, I thought I needed a wierd shaped thin wrench. But working on it and wrecking my brain for a while, I realized I didn't need such a wrench. It's not designed to be needed for remove. I was not doing the proper way of assembling it. Once, I figure out the proper way...the special wrench was not needed.
12-10-18, 08:25 PM
#11
Shimano Certified
X2 on the ignition wrenches. I use them all the time and a set of them can be had from a car parts store for less than $20.
12-11-18, 12:55 PM
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timo888 said about 2mm. The difference between 3.2mm (1/8" or 8/64") and 2mm is 3/64" (5/64"). It depends on the application but that should fit into the "about" category. A millimeter is pretty tiny.
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Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
12-11-18, 05:00 PM
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12-11-18, 06:17 PM
#14
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Cone wrench?
12-11-18, 06:42 PM
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12-11-18, 07:56 PM
#16
Non omnino gravis
Capri Tools makes an 8x9 combo open-end wrench that is 2.6mm thick. Pretty much every other "thin" wrench I found is 1/8" (3.2mm) thick. I think if you're looking for 2mm, might have to make it.
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12-12-18, 10:02 AM
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Gold Fever Three days of dirt in Colorado
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Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
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Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
12-12-18, 10:33 AM
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One thing to consider is to step back and think...why would a designer make something that requires so thin a tool when servicing? When such a rare tool is almost non existence.
One thing is that it is quite possible that you are doing something wrong in your assemly/disassembly of somehting.
I had similar situation working on a internal gear hub. At first, I thought I needed a wierd shaped thin wrench. But working on it and wrecking my brain for a while, I realized I didn't need such a wrench. It's not designed to be needed for remove. I was not doing the proper way of assembling it. Once, I figure out the proper way...the special wrench was not needed.
One thing is that it is quite possible that you are doing something wrong in your assemly/disassembly of somehting.
I had similar situation working on a internal gear hub. At first, I thought I needed a wierd shaped thin wrench. But working on it and wrecking my brain for a while, I realized I didn't need such a wrench. It's not designed to be needed for remove. I was not doing the proper way of assembling it. Once, I figure out the proper way...the special wrench was not needed.
12-12-18, 10:42 AM
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12-13-18, 08:41 AM
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I measured my vintage Mafac tool kit wrenches as 2mm thick. Trouble is the 9mm is closed but I suppose one could cut it open? There are several sets up on Ebay most any time.
12-13-18, 11:40 AM
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I would source a piece of thin strap metal and cut a nine mm wrench out of one end, unless the application requires something harder.
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12-13-18, 12:21 PM
#22
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