Snap-On numbering - Rhyme and Reason ?

[njc41980]

I understand that "H" stands for handle, and "F" stands for flex, but why are 1/4" drive ratchets all labeled with a 72 and 3/8" drive ratchets labeled with an 80? I half expected 1/2" drive ratchets to be labeled with an 88.

 

[blown94conv]

72 teeth on the 1/4 drive, 80 on the 3/8 and 1/2.

I rather know why they use the color codes they do. PES is yellow? PJK is Orange?

 

[Buckgnarly]

Tooth count

 

[Wamsutta]

They tell you the tooth count in the part number.

They tell you the drive size in the part number too.

 

[kythri]

When it comes to drive tools, the leading letter indicates drive size (with the exception of a G preceding any of the following - G indicates non-chromed industrial finish):

T = 1/4" drive
F = 3/8" drive
S = 1/2" drive

Past that, then there is:

L = long handle
LL = extra-long handle
H = some kind of plastic handle (comfort grip or hard handle)
F = Flex
X = Locking Flex
S = Speeder Handle (discontinued after the FSLF936)
C = Compact
B = Bent Handle

The 72 in 1/4" drive indicates 72 teeth, the 80 in 3/8" or 1/2" is 80 teeth.

Earlier models had a 32 or 36, indicating that number of teeth (i.e. S832 or S936).

A trailing letter after the number (so far, I've only seen A) indicates a revision.

There's undoubtedly a lot more...

 

[MaverickDMD]

+1 Kythri

 

[njc41980]

Thanks guys

I love companies that use numbers with significance and stick to a system.