Found letter

Hey, Dave!
It's yer old buddy, Plumb Bob! Long time no see!
It's dark in this drawer.
I do like the new orange string. And that Gammon Reel! Wow! The construction model with the twelve foot long string. Or is it fifteen feet? I don't remember it's been so long.
Now I see I've been replaced with that optical plummet thingy under the instrument.
Even when the bubble is centered and the cross hairs appear to intersect at the point, I'm still the proof provider, don't forget that.
Okay, so I know I've poked some holes in your vest and pants pockets, but that's because you've always provided me with a sharp point. But maybe that's why you've used me as a tack hammer and a digging tool, and sometimes a scribe. Ouch!
Gimmee another chance and I'll point the way for you. At least the way perpendicular to level.
You know, you could buy a scabbard to protect things from me. Oh, wait. You don't even wear a belt anymore, just those old guy suspender things.
Speakin' of old, you and I have been together longer than you and your wife: fifty-three years with her and fifty-six with me. How many other tools even last that long?
How about if you just take me out to play some games. Stab things, stick me in a tree, that kind of stuff. Then I'll go back quietly until you realize how important I am.