Looking for Opinel Measurements

[EngrSorenson]

Hey folks- I realize this could go in the tinkerer catagory, but I figure theres probably more folks with opinels hanging around here, and I'd bet a few of you have calipers at the ready for just such a question.

I'm planning to tinker more with Opinels (not sure why, this urge always seems to hit me in the month of March).
I'm looking to collect some information on the various sizes of Opinel, particularly sizes 9, 10, and 12, though all would be interesting. I need to know the width of the kerf in the handle; see picture below as an example from a No 8.

 

[EngrSorenson]

So I bought 4 Opinels to solve this mystery.

I measured each kerf in at least 3 locations and averaged them. This measurement is in inches. I provide the nearest metric equivalent to the half millimeter, assuming this is the standard in France.

No. 6 kerf: 0.063 inches, ~1.5 mm
No. 8 kerf: 0.074 inches, ~2.0 mm
No. 10 kerf: 0.096 inches, ~2.5 mm
No. 12 kerf: 0.105 inches, ~2.5 mm

By all accounts the No. 9 should be the same as the No. 8.

Editing to add best approximations using standard sizes:
No. 6 kerf: 0.063 inches -> 1/16 in (0.063 in)
No. 8 kerf: 0.074 inches -> 5/64 in (0.078 in) OR 2.0 mm (0.079 in)
No. 10 kerf: 0.096 inches -> 3/32 in (0.094 in) OR 2.5 mm (0.098 in)
No. 12 kerf: 0.105 inches -> 7/64 in (0.109 in) OR 2.75 mm (0.108 in)

 

[EngrSorenson]

Some interesting data to add here.
Got a #7 and a #8 slim today, and I was surprised to find the similarities.

Blade stock of 08 slim: 0.061
Blade stock of 07: 0.063

Blade length of 08 slim: ~3.125
Blade length of 07: ~3.125

The kerf of the 08 slim is tapered, getting narrower at the pivot, but lines up at the end with the 07. I believe the slim is pinched.

No 8 slim kerf: 0.060 - 0.070
No 7 kerf: 0.070

Length of both ferrules: 0.747
Inside diameter of end of both ferrules: 0.554

A No. 07 and a No. 08 Slim share a lot of the same dimensions.

 

[catspa]

Quite a herd yer runnin there.

Parker