no it's definitely shimano 333 and splined like Jim said.. but you're right that these are still made by bicycle research and available from biketoolsetc.com:
andrei padlowski usually in brooklyn, ny
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>>Could you be mistaken and be thinking of a suntour freewheel 888?
>Those tools are quite common.
what is the appearance of the 333?
does it have two opposite notches, or is it splined?
If one needs a "puller" from back in the day, perhaps look for a tool by
Bicycle Research.
bicycle research made a lot of different freewheel removing tools.
good luck,
john strizek
sacramento, california USA