What is the Pentel W-Knock?

[knowishallnot]

As I’ve gone through this forum, I’ve heard the term W-Knock thrown around. To be frank, what is it, how does it work, and what are some models with this W-Knock?

[Knockologist]

Search on the forum. There’s some info.

[Pdunc67]

See

The Pentel W-Knock

[Pentel_W-Knock] Here is my Pentel W-Knock mechanical pencil. Not much is known about this model and it is a very rare find. There was a comment on Reddit that potentially explained the “W” reference… “I don’t know any Korean, but I know about W and double in Japanese, so here it is in the hope that it might help: AFAIK Japanese people read the letter ‘double‐u’ and ‘double’ the same (as ‘da‐bu‐ru’) because the ‘u’ at the end is silent (or just makes the ending ‘u’ sound a bit longer). So…

[nimrodd]

If you check out the Pentel Pencil Book look up the P1025.

[cytherian]

I’d always thought that “W” was used as a double-V “VV”, where each “V” is a knock… hence, it means “double-knock.”

Did Pentel officially use the name “W-Knock” for some of their double-knock pencils? I’m curious, because Mitsubishi did use that name prominently, in fact embossed on various models.

[Knockologist]

The Pentel P1025 does have the letter W on it.

I think Jimmy’s book does mention the idea that in Japan they sometimes used “W” to represent double.

[drifand]

The way the letter ‘W’ is pronounced in Japanese (ie ‘double-u’) ends up with the ‘u’ greatly diminished. So the result is ‘W’ just sounds like ‘double’. And so it became a short form for ‘double’.