One year as standard under British law

Consumer law says it never expires IF its a manufacturers fault - good luck proving it.

according to the store manager it is 12 months. The one I bought broke beyond repair after 15 months. I had only used it 5 or 6 times though.
I would avoid it

12. Months

if the bike tyre has a car like valve - its the same
(Shraeder)

If its a woods or Presta, no, none of these pumps will do the job, get a bike specific pump, they are cheaper anyhow

The pump comes with attachments, but i did not need to use any for my bike. My bike is a mountain bike for everyday use on the roads and not off road use. I think that racing bikes have a different valve/nozzle to non-racing bikes. But I had no problems.

yes

It couldn't blow up a balloon without causing a problem. Buy something else.

I couldn't get more than 60psi out of it

Car, probably not
Bike, probably yes, but it go go bang - the tyre that is!

In my opinion, the Michelin costs more money but is unreliable, poorly designed and of poor quality.

Halfords cost less

the build quality the halfords one does not look as good but it does outperform the michelin one

I'm in the same boat, you can get the part from Michelin

If nearly new, take it back and get your money back and buy a decent pump. Mine suffered the same issue.

They sell it instore