Metric or Imperial

[woodbloke]

PS Could always use a rod, I suppose :-k :lol:

...just don't tell 'you know who, you know where' :lol: :wink: - Rob

 

[Paul Chapman]

:lol: :lol:

 

[dunbarhamlin]

PS Could always use a rod, I suppose :-k :lol:

...just don't tell 'you know who, you know where' :lol: :wink: - Rob

That'd be 5 1/2 yards then.



Or a silly number of mmmmmms

 

[Paul Chapman]

Or a perch, or a pole, I believe :-k

 

[Benchwayze]

You see what I mean ? If we all just dropped this imperial stuff and the whole world was in millimeters then no-one would have these problems !!

Yes they would! Me for a start. But as I have only a couple of decades left (if I am lucky) I suppose me and my contemporaries don't count.


The Metric system was based on the distance from somewhere in France to the North Pole I believe. Only the problem was, somone got the distance wrong in the first place, so a metre isn't really as long as the official Metre that's kept in France's equivalent of the Weights and Measures Department. Metrication is based on a fallacy to begin with. Even the 'Standard Metre' was made of metal; affected by heat! Although, that probably applies to the official yard too!

 

[bugbear]

My real grouse is with the way suppliers mark some tools, with ¾ being used to describe any dimension between 18 and 20mm (3/4 is actually 19.05)
I've seen chisels marked ¾ 18mm, can't be both.

Ah, but they can. The usual manufacturing tolerances on chisel width are so wide that a chisel can be both 3/4" nominal and 18mm nominal.

I've measured old (imperial) 3/4" nominal chisels. They're all over the place!

Even (vintage) plough plane irons, where you might expect a 1/4" blade to cut a 1/4" groove are very variable in this regard.

BugBear