Is this repairable ?

I have a manfrotto xpro 3 way pan and tilt head. One of the axis handles has cracked and won't turn the screw to make it loose. Because of this im not able to make the camera go vertical.

Do you guys think this can be repaired or should I just bite the bullet and get a new one - and if so are there any cheaper alternatives ?

I bought the manfrotto one a couple of years ago with the idea that the more expensive gear would last a life time so now im a bit skeptical about putting money into an expensive head again.