Why righthand threads?

[jaCK HobsonParticipant @jackhobson50760]

I vote the filing of rh threads.

As some might be getting fed up of me going on about it – there are no left handed files outside watchmaking (for use by right handers on a lathe).

[roy entwistleParticipant @royentwistle24699]

Has anyone noticed the number of medical people who are left handed ? Personally I can only wind anything, like a drill, or a fishing reel, left handed, a lot of things I can use either

[Mick B1Participant @mickb1]

I’d’ve thought it goes back to the movement of the the sun across the sky. If you’re forced to choose, you’d pick a familiar direction as the default, and move away from that by exception if there were a reason to do so.

Not sure why many British Imperial smallarms had barrels rifled with a left-hand twist, though.

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