Oregon says the chain can be resharpened five to 15 times, depending on the condition of the blade. You'll know the blade needs sharpening when you see fine sawdust instead of chunks of wood.

The Oregon 310 model was by far my fastest and ... We also included sharpeners that sharpen blades on the chain bar and those that sharpen blades off the bar. The first thing we needed to test ...

At least three Oregon families found razor blades hidden ... "The razor appears to be something similar to a pencil sharpener blade," police said in a statement. Each of the incidents, according ...