strange die grinder

dr sportster · Nov 6, 2015

I picked up a Keller Tool Co rotary tool no. 1033. It has a 1/8" pipe thread opening not 1/4 as every other air tool . It is also described { if I search the patent number 2099280] as a hydraulic tool . This makes no sense because it must be pnuematic as it only has one opening . [ I mean what would it do spew spent hydraulic oil out some port?]. It also has a quick release chuck that takes 1/4" hex shaped shafts. Searching the patent makes me realize it is pnuematic but why would it be called hydraulic ? Anyone seen an air tool inlet in 1/8 pipe thread? Also has a grease fitting near the air entrance. Grand Haven Mich. Lots of other writing too.

Chris(WA) · Nov 6, 2015

Maybe it is for underwater use??? That's my WAG...NEXT!

markiz41 · Nov 6, 2015

Grease fitting.. that had better go somewhere other that the air motor. Like some of the old IR rattle guns that had a way of greasing the impact clutch through the back of the rotor.

Den N Ms · Nov 6, 2015

dr sportster,Are you sure that 1/8" grease fitting hole is not for a return hydraulic line,and someone stuck a grease fitting in it for a plug.

dr sportster · Nov 7, 2015

No it is an 1/8 pipe inlet there is a grease fitting installed right next to it.

Andy Martin · Nov 7, 2015

My SIL has a backhoe that works that way, you put hydraulic fluid in it and it just spews it all over as you use it. Works for him.

strange die grinder

dr sportster

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Chris(WA)

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markiz41

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Den N Ms

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dr sportster

Well-known Member

Andy Martin

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