Tailcap stuck on flashlight body

[Labrador72]

I am unable to unscrew the tailcap of my Nitecore MT26. I keep this light in the car and probably didn't lube it regularly as other lights I use on a daily basis.
The head comes off just fine and even smoothly. The tailcap, however, is stuck.

Any suggestions on what I could do to unscrew it?
For now I want to avoid using a vice - which I don't have anyway - or similar devices not to damage the light.

Thanks in advance.

 

[sween1911]

Take the head off and remove the battery and run the tailcap under very hot water, or heat it up with a heat gun or hair dryer.

Then use a rubber strap wrench to twist it off. You can also use pliers around the rubber strap around the tailcap to protect the flashlight finish.

Go slow, take your time. You'll figure it out.

 

[scalpel_ninja]

Rubber strap wrenches work pretty well. I also use leather to pad between the metal and vise or locking pliers for grip and protection.

 

[bykfixer]

Try tapping it against a wooden object at the tail end. Sometimes that will break a bond if that is the case.
When you get it loose put some lube on the threads to prevent the bond from re-occuring.

 

[ghostguy6]

I would also suggest a few drops of penetrating oil. When you get the tail cap off you likely will need to replace the O ring.

 

[bykfixer]

I would also suggest a few drops of penetrating oil. When you get the tail cap off you likely will need to replace the O ring.

Matter of fact maybe try that first. Just a few drops should work.

 

[The Hawk]

You might want to try some vice grips. Wrap the flashlight with cloth so as not to damage the finish.