3/4" table saw arbor??

[Nubsnstubs]

I've been woodworking since 1975. I have owned 4 different table saws in that time period. I have probable had the pleasure of using at least 10 different models and blade diameters. Skil saws usually have a 1/2" arbor with a 7 1/4" blade. Larger ones I've never used, so can't say what sizes they might have.
Most table saws have a 5/8" arbor unless it's really old. I have used a 12 and 14" table saw, and they had 1" arbors.
My question is; Why did Craftsman make a Molding Cutter #9-3200 with a 3/4" arbor? It has an arbor adapter for a 1/2" arbor. The unit is tiny, barely over 4"OD with the cutters installed? I have another #9-5211? or 9-5214 that it's diameter is the standard at 7 1/2". It also has a 3/4" hole , but does have an adapter for 5/8" arbor.
I have 2 others that are for only 5/8" arbors with the standard OD. They are all Craftsman. It's starting to look like I'm addicted to molding cutters.
Rant is over. ................ Nubs

 

[Nature Man]

I've been woodworking since 1975. I have owned 4 different table saws in that time period. I have probable had the pleasure of using at least 10 different models and blade diameters. Skil saws usually have a 1/2" arbor with a 7 1/4" blade. Larger ones I've never used, so can't say what sizes they might have.
Most table saws have a 5/8" arbor unless it's really old. I have used a 12 and 14" table saw, and they had 1" arbors.
My question is; Why did Craftsman make a Molding Cutter #9-3200 with a 3/4" arbor? It has an arbor adapter for a 1/2" arbor. The unit is tiny, barely over 4"OD with the cutters installed? I have another #9-5211? or 9-5214 that it's diameter is the standard at 7 1/2". It also has a 3/4" hole , but does have an adapter for 5/8" arbor.
I have 2 others that are for only 5/8" arbors with the standard OD. They are all Craftsman. It's starting to look like I'm addicted to molding cutters.
Rant is over. ................ Nubs

Seems awfully strange. Could the cutters have been designed for a shaper? I’m just throwing out a wild guess. Chuck

 

[Mr. Peet]

I have seen a few table saws with 3/4 arbor. They were 1920's or so. One was simply the shaft and blade and you built the table. This fixed height saw was offered by Sears and Roebuck. One of the others was a Montgumery Ward. Can't say seeing any modern (1950 and newer) with a 3/4 arbor. What about metric countries? 19mm seems odd as well.

 

[Mike1950]

Dad bought a craftsman 10" saw in 1959 or 60. Same time got a molding set. I have, the set, somewhere. I think it had and insert to make it fit saw arbor. Son still has saw. I think still has original belt, works fine.

 

[Greenacres2]

I inherited my Dad's 1946 Atlas Radial Arm Saw (turret-style, bought out by Delta a few years later for that design)--it has a 3/4" arbor. Carbide Processors out in Washington state can make saws, not much more money than buying a quality 5/8" or 1" (and use a bushing)

 

[daniscool]

I have seen a few table saws with 3/4 arbor. They were 1920's or so. One was simply the shaft and blade and you built the table. This fixed height saw was offered by Sears and Roebuck. One of the others was a Montgumery Ward. Can't say seeing any modern (1950 and newer) with a 3/4 arbor. What about metric countries? 19mm seems odd as well.

It is an odd number for metric too. Twenty and such are usual but I have yet to come across a 19mm arbor. To be fair though, there aren’t many old table saws on the flea markets today round here and I don’t go around looking for table saws anymore.