When you measure a pocket knife?

[Beachkid23]

Where do you start? With the blade open, closed? I have an old flylock. Where do I start, assume with it open? Sorry, use to jewelry.

 

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[RustyGold]

I believe it’s by the blade. A 4” folder would have a 4” knife blade.

 

[RustyGold]

I got this online.
“The American Knife and Tool Institute states that a knife blade should be measured from where the knife handle ends. ... Place the end of the measuring tape or ruler against where the blade meets the knife handle at the lowest intersection. Measure blade to its highest point at tip. This is your blade measurement.”

 

[Terry Soloman]

Two measurements, Open and closed. 4" closed, 7" overall (with a 3" blade).

 

[gunsil]

Pocket knife collectors go by overall length of a knife in the closed position. Too bad about the broken plastic handle, it's a hard to find these in excellent condition. Most collectors of antique folding knives do not care about blade length, if you're selling it the closed length will do, everybody who collects them knows the length of the blades for a given model and frame size. A 4" folder will have a blade shorter than 4" because it has to fit in the frame when closed.

 

[Professor of Engineering]

Nice find!

 

[A2coins]

Good info Terry