These are my favorite pruners. I keep them sharp. They are not the most expensive tool in the box and doesn't even have a brand name. But I love them because they fit my hand perfectly. The trouble is, the blade won't close fully. If I tighten the nut, it won't spring open. when it springs open it won't close. Is there a secret to this?? Surely someone knows how to repair pruners? I have other pruners I can use but I LOVE THESE PRUNERS!!!! Help?

If you don't get any answers here, try bringing it to your favorite hardware store or a grinding shop.

Maybe a little three in one oil will get it to working when tightened up. I had a favorite kitchen shears that didn't want to work of course I grabbed what was handy which was olive oil it has been working ever since.

Looking at the photo it looks like the "shoulder" of the handles are touching, so the blades can not close any further no matter how hard you try. To me it seems the pruners blades must be taken apart and rotated to some degree so that when the handles are completely closed the blades are closed. Have the pruners been taken apart at some point in order to sharpen the blades? Maybe they were not assembled correctly afterward?

Thanks so much for the suggestions.
I greased the heck out of them.
I keep them sharp with a whetting stone.
The blades are not touching but crossing like they are supposed to.
I will take them apart. It's never been taken apart. Wish me luck getting them back together!

Am thinking 1 or both handles are bent too far inwards .....

If you have a bench vise .... take the pruners apart .....then lay both handles on top of one another - and see if both have all the same bends, in the same place .....

If not, take the most bent handle .....note which way you need to bend the handle outwards ....place blade end first into vise jaws - tighten vise down ... then using just hands & fingers try to bend a little at a time ....a soft-headed hammer might be helpful

Reassemble ....Then check to see if the jaws close ...

Thanks @deepsouth. May I ask which direction are the handles supposed to bend? I mean, which way is in...in as in towards each other from the inside??

Also the non blade side when in the open position can be pushed together easily by hand. Is there a way to adjust that side of the blade position?

The blade on those secateurs looks very much worn: that's the reason why it seems so hard to keep closed. There isn't a whole lot of metal left.
This is absolutely normal for secateurs that get sharpened often.

You can get spare blades for most good quality secateurs (ARS, Felco, Fiskars etc). In Felco's case the design hasn't literally changed in over seventy years so even ancient ones can be fixed quickly and cheaply.
Yours look like an old Gardena design or a copy, and that could be a problem as Gardena blades have never been easy to find. Still an old Gardena or Husqvarna dealership (gardena is owned by Husky) may still have a few in stock.

Once handles are bent outwards - am thinking the blade and by-pass will close



But ElPolloDiablo has a point ..... most pruning tool companies do offer replacement parts .... might check ebay for hard to find parts