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Ever wonder what that square hole was for?

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Ever wonder what that square hole was for?

Old 05-27-20, 01:00 PM
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oneclick
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Ever wonder what that square hole was for?

The square hole in the middle of one of these:




Well, a square thing-to-be-turned, of course; but where?

Found out today - here:





These are very handy touring spanners. The are *excellent* at gripping the head of Mafac Racer cable-fixing bolts, which have flats no thicker than the spanner; you can feel with your thumb/forefinger whether the spanner is coplanar with the bolt-head, plus they are big enough to easily keep the bolt straight on the cable while you tighten/loosen the nut.
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Old 05-27-20, 01:01 PM
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That's a Raleigh tool, right?
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Old 05-27-20, 01:16 PM
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Originally Posted by bikemig View Post
That's a Raleigh tool, right?
No markings, but I'd guess not - has metric and imperial size holes. I think all the ones I have/have used of this pattern are that way.
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Old 05-27-20, 02:00 PM
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Good catch, I concur it's an amazing tool.

There are 4" adjustable wrenches available that can be filed out to fit up to a 5/8" (16mm) axle nut. The one on the left here is an oldie that I found street-side, weighs only 48g and fits 15mm nuts after a bit of filing to the jaws.
Plenty of torque capacity if the axle threads and washer are kept lubricated.

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Old 05-27-20, 03:03 PM
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Originally Posted by bikemig View Post
That's a Raleigh tool, right?
I’ve seen a couple of different versions, but here’s a pic of the Raleigh tool:

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Old 05-27-20, 03:21 PM
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Nothing found on a tool originating off a country that does imperial will surprise me. And by "nothing", I mean *nothing*.
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Old 05-27-20, 04:01 PM
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In my experience, it's for the end of coaster brake axles for adjustment.
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Old 05-27-20, 04:53 PM
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MAFAC tool kits (at least the "full" version) had one of those as well. Doubled as a tire lever.
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Old 05-27-20, 05:13 PM
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I always thought it was for those square bolt heads on old tricycles and kids bikes
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Old 05-27-20, 05:59 PM
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Something round has GOT to fit in that hole. I'll ******g make it.
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Old 05-27-20, 06:01 PM
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I inherited a couple of those tools from my dad. And some other, similar gems. Haven't yet found a use for them. I will take one on my next tour.
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Old 05-27-20, 06:57 PM
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The crank turned out better than I expected:




Now it will get a final polish and clean, then sit on the top of the boiler for a few days (absolutely the driest place in the house), then clearcoated on the next decent very-dry day. It'll still rust, this is not for a showpiece bike, but a time-capsule survivor. More photos when it's done, probably different thread.
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Old 05-28-20, 08:13 AM
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Originally Posted by The Golden Boy View Post
Something round has GOT to fit in that hole. I'll ******g make it.
I was going to say the square hole is for hanging the tool on a round peg on the workbench.
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