"It's good enough for me to use" would be another way to say it in the context of "I know you wanted a big screwdriver, but I only have this little one" "eh, I'll make it work" or "Eh, it's good enough for me to use." or simply "eh, its good enough" Hope this helps :)

'I'll make it work' indicates your competency/ ability of performing a particular job or task. Hope this helps :)