View Full Version : Sun? What is this?

12-03-2011, 12:21 AM
Can someone explain to me the measurement term "sun" and how it works/relates to knives. In another thread, a Murrar Carter knife is mentioned at 8.1 sun. how does this relate to imperial/metric?

12-03-2011, 12:23 AM
old japanese measurement... 1 sun about 30mm

Pensacola Tiger
12-03-2011, 12:45 AM
Carter Cutlery has a converter on their website to do conversions among inches, millimeters and sun:


12-03-2011, 12:57 AM
Thanks guys! That one had me scratching my head. :scratchhead:

12-03-2011, 02:15 AM

Everytime I see that profile pic I want to place another order. Stop it please ;)

12-03-2011, 10:30 AM
:D I'll just say thank you, and you know where to find me!

Dave Martell
12-03-2011, 06:01 PM
Sun measurement = something to confuse us

Eamon Burke
12-03-2011, 06:08 PM
It's a badge of honor. It means your knives are truly Japanese. It's the step beyond Kanji on the blade.

12-04-2011, 02:00 AM
- or it's a personal measure preference if you do acupuncture. There's 12 (c)un from the wristcrease to the elbowcrease on the forearm ... :D

mr drinky
12-04-2011, 02:43 AM
And if you do use sun as a unit of measure in your knives, you have to have an elaborate product code with the real mm length embedded ;)

This is a real Carter product code. 8.1JPY242X369H/WB

I think the number before the 'X' in Carter's product code is the mm length. Just to make it more confusing though, that product above is wrong. 8.0 sun is 242 mm, not 8.1 sun. The bottom line is that I always use the number before the 'X' when viewing Carter's knives and ignore the sun measure.

So Dave is correct, it is there just to confuse.