• 3D Printed Knife Sharpening Tool

Shear sharpening

• Patent on Sheep Shears - May 17, 1910 patent
  • More patents from people in HIll County, Texas - http://txgenwebcounties.org/hill/HCPatents.htm
• NIH paper on Laparoscopic scissors: a subjective and objective comparison of three brands
• Will cutting the wrong thing blunt shears
• Do you need haircutting shears to cut hair - microscope pictures of hair cut in various ways
• Different kinds of scissors and sharpening benefits different cutting methods - https://www.shiroshears.com/your-shears-can-make-or-break-the-cut/
• The difference between shear vs. cutting - https://wikidiff.com/shear/cutting
• Micropoint shears - cut without a pivot - https://www.emsdiasum.com/microscopy/products/tweezers/dissect.aspx
  • Includes diagrams

• Wikipedia article on scissors
  • Shears are larger in size and for heavier cutting
  • Wikipedia article on haircutting shears
• Difference between shears and scissors
  • Scissors “are characterized by two small blades (less than 6 inches long), which are riveted togethe”
  • “The term shears is used to describe scissors that more than 6 inches long. Shears can therefore be thought of as large scissors, which are designed for specific applications.”
  • “One common design difference between a scissor and a shear is that, typically, a shear has a larger handle on either one side. This is so that the user can accommodate more fingers into it, and apply more force needed to cut harder materials.”
• Scissors for sale
  • ”Scissors have symmetrical, equally sized finger holes and are generally under 6“ in blade length, while shears have one smaller finger hole and one larger finger hole and are more than 6” in blade length.”

• Pivotless shears
• difference between hair shears and scissors
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• difference between shears and scissors