Help with any info on 1/2" torque wrench

[WhiskeyTangoFox]

Never been one to have the expensive tools and I just realized I may own one without even knowing it. This is a snap on, isn't it? It has no snap on markings and the numbers on it don't register with anything from snap on.

Anyone have anything similar to it? This was given to me and for the past 8 years it just collected dust. But since visiting this forum so much recently I learned what a snap on ratchet head looks like and I don't know what to do with it. Haha. Anyways here are some pics of it.

 

[AndrewH]

It's actually made by Precision Instruments, who also makes some of Snap On's torque wrenches. That looks similar to a Snap On ratchet head but I'm thinking it's a rebranded PI for Firestone.

 

[AndrewH]

Also, those are great torque wrenches, so even if it's not branded Snap On you still have a quality tool. I have the SO branded version, the grips are red and it's stamped Snap On.

 

[WhiskeyTangoFox]

Thanks for the info Andrew

 

[Steinmetz]

It's a PI.

 

[sselander]

The patent numbers hold a clue

The patent numbers for the ratchet head 4934220, 6125722 will take you here:

http://buy1.snapon.com/catalog/parts/pro_det.asp?item_id=83984&group_id=22305