On 23/05/2021 12:32, David wrote:
On Sun, 23 May 2021 02:18:01 -0700, Murmansk wrote:

You can tape measures on a reel that have two sets of numbers, the ones
on one side are for measuring internal gaps like yours, you read the
measurement through a window on the top.

https://www.thetapestore.co.uk/fisco...nal-measuring-
tape-vf3m

Thanks.
That is a really clever design.

Every tape I have bought in the last 20- years is like that

Cheers


Dave R





--
"What do you think about Gay Marriage?"
"I don't."
"Don't what?"
"Think about Gay Marriage."