Can i take the pins out of the chain (bike chain) with any other tool..can u use like a hamer and a screw driv

or does it have to be the chain tool?

I guess in theory you could, but do not do it. It would be like using a hammer to put in a screw (only example i could think of). You are more likely to damage the chain. Chains are $30 +/-, a chain tool, that will allow you to take a pin out and put a new one in, is about $10. Invest the money and get one. They are very easy to use. Also, you can get pins (and a link) that will allow you to break the chain apart and put it back together. I have used one for years and they work great. Great way of being able to clean the chain.

i used to use what you use a chain tools just easier just a quick note you put an old knife on the side of the link tap with hammer til it opens a bit put in screwdriver tap til it pops off twist it round do what your going to do twist back round hit with hammer it closes the link done that way for years with no problem when you don't have cash you improvise
I doubt you could do it. The pin and both side plates need to be aligned at the same time when you re-install it. The pin has to go through a precise distance etc.

However, if you're saying you only want to push a pin out and not put one back in, heck give it a try, worse case is you buy a chain. You'll probably bend up the chain links is my guess. You will need to use a punch or other hardened tool that is narrower than the pin, you'll have to push it through both side plates and they are in there but tight.

Someone said a new chain costs $30 that can be true for a quality road bike chain but not for a single speed or 6/7/8 speed low end chain they run 5 to 15 bucks.

I hope you're not thinking of doing this on a $30 to $80 chain!
Chains are a important part of the drivetrain, by usuing the proper tools you ensure that your bike will be safe to ride. You could try other methods with mixed results, But Using the wrong tools is playing your safety. Not something i would be willing to do. Chain tools push the pins a measured length out, and pushes in the same distance.

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