Quote Originally Posted by Mcbladescar View Post
I'm told my Oster is "self sharpening" I cant confirm that though and even though mine is quite old (about 1958 or so) it still cuts really well.
The side of the clipper has a large screw which secures a spring that you can unscrew a bit and the relieve some of the tension force required to squeeze it so mind operates quite easily. It is kinda fun to use.

Mike
After some investigating, I would have to agree that they are self sharpening, especially if they are Oster clippers. As long as you keep them clean and oiled, they will stay sharp.
If they are a bit far gone, you can also sharpen them on a honing stone...there are many videos on youtube that demonstrate this.

I've made a bid on ebay for a vintage Oster hand clippers that I will restore. I'll be sure to post my results!