By creating the hardest material possible. The harder a material is the better it's edge holding abilities, and thinness of edge. Some knives can reach a micron thick. See the Rockwell Hardness Scale- http://en.wikipedia.org/wiki/Rockwell_scale
While it may seem like a very basic product, foam is used a considerable amount in the packaging and shipping industry as well as in arts and crafts.%C2%A0 If you are starting a new project in which you will be working with foam, then purchasing the right foam cutter for the job is quite important.%C2%A0 When you are shopping for a new foam cutter, there are several consideration that you should make. %C2%A0 When shopping for foam cutters, the first consideration you should make is the blade of the foam cutter.%C2%A0 The blade is a very important consideration because the blade should match the project at hand.%C2%A0 If you are making precise cuts, then you should select a smaller blade that is designed to go around corner or through different angles.%C2%A0 If you just need a blade to cut bigger pieces of form and in a straight line, then you would be better off with a larger and more durable blade. %C2%A0 Another consideration to make when shopping for foam cutters is the temperature of the blade.%C2%A0 While foam cutters can be purchased that use an unheated blade, foam cutters that use a hot blade work much better. When a blade is properly heated, it can quickly cuter through foam of any size.%C2%A0 When shopping for the foam cutter, you should look for a foam cutter that has a temperature controlled blade.%C2%A0 That way, when you are working with the foam cutter you could adjust the temperature of the blade to meet the needs of your project. %C2%A0 Safety features are the third consideration that you should look for when shopping for a foam cutter.%C2%A0 Since foam cutters have a sharp blade, require an electric charge, and can be very hot when in use, finding a foam cutter that is safe to use is quite important.%C2%A0 Foam cutters that are safe have various features that set them apart from more dangerous cutters.%C2%A0 For example, you should always look for a blade that has a temperature gauge.%C2%A0 These gauges will let you know when it is hot and will help prevent a burn and could even help you prevent a fire.%C2%A0
Stone cutter make a hour in a day
There is no way to make a stone cutter on minecraft PC. This is only on PE.
Flint can be very sharp and it was used by ancients to make into arrowheads. A diamond when shaped correctly can also be very sharp.
cutter
Metal+Stone=Blade
use a lawnmore
blade+grass blade+wheat
you can't make it change in to it, you unlock the blade of awe by collecting pieces by random battles, as long as your a guardian and patient you will get the blade in no time.
Vital Slash + Poison Blade = Stop Blade
"I accidentally cut myself with the 'blade' of a knife."
a carpet cutter