Unidentifiable tool

[penfold]

I will pile on and confirm it's a doofer for undoing (generally drinking/potable but not always)water filter housings; they are not tolerant of overtightening and will break if abused, but then the housings are generally sealed with O rings and do not need to be wound up to a zillion lb/ft of torque so arguably it's intentional.

I suppose the small hexagonal hole is for a drain plug so you can drain the filter before unscrewing it.

Possibly, or could be for the air bleed; they vary depending on maker.

 

[LittleSister]

I have something similar for the cap on the engine cooling seawater inlet strainer (a non-Vetus type).

 

[Seastoke]

IF your mouth is as big as BruceK , he uses it for blowing bubbles.

 

[stelican]

Quite often seen them on generator equipped new builds, U\ased for opening seawater filter.

 

[Bru]

Obviously a Nurble Grip Thribley (Mk 2) .... everybody's got one! ..... ?

Are you sure? I thought it was a Mk.3

And is it left or right handed???

 

[iantomlinson]

dependant on the size, i also have one to undo a bottle trap and also bath wastes. still looks like water filter tho. that guys correct tho- its called a flingadjustable turnything.

 

[Gwylan]

Hello , can anyone please shed any light on what this tool is for (picture below)I have just purchased the boat and it was sitting in the engine compartment, it obviously undoes something but I just can't see what.
Cheers NigelView attachment 132039

Water maker suggestions may be right.

Have you got a filter in your fresh water system?
Looks like the spanner for changing it.

 

[Gwylan]

Are you sure? I thought it was a Mk.3

And is it left or right handed???

No, it's the old Whitworth standard. The Imperial ones were made in blue.

 

[gordmac]

Some years ago I installed a water treatment plant on a farm, the kit came with one of those for the water filter bodies.