Shears Sharpening

sharpening
(sharpen) raise the pitch of (musical notes)
Improve or cause to improve
Make or become sharp
(sharpen) make crisp or more crisp and precise; "We had to sharpen our arguments"
(sharpen) focus: put (an image) into focus; "Please focus the image; we cannot enjoy the movie"

shears
A cutting instrument in which two blades move past each other, like scissors but typically larger
large scissors with strong blades
The Shears (Hada plebeja) is a moth of the family Noctuidae. It is found in Europe.
Glassmakers scissors that are used for the cutting, trimming and shaping of hot glass.  Usually very primitive in design with heavy gage steel.