The angle reduces cutting force, enableing it to cut rather then chop or shear of the neck. It is used on all sorts of cutting imolements, metal shears, stamping tools for thin materials, paper cutters, common household sissors also dont engage all of the edge at the same time.
Why are guillotine blades slanted or angled?
The falling weight of the blade provides the energy and the angled edge concentrates that energy on a smaller area than if it were a straight blade, it also makes a pseudo cutting or slicing motion as well rather than a chop so it is simultaneously cutting down and across making it even more efficient. It’s like cutting a crusty french stick loaf, if you try to cut across the whole width of the stick you end up crushing it and making a mess but if you angle your cut with the knife blade in contact with a smaller area it breaks through the crust and cuts the loaf without crushing it and makes a neater job. 
The diagonal edge acts as an inclined plane or wedge, allowing the same 40-pound weight of the blade assembly to exert a greater pressure on the neck’s flesh and bone, for an easier and swifter execution. Necks look fragile but can take a lot of force, as they must to hold up our heavy heads throughout life. Reportedly, King Louis XVI was watching the guillotine tested on dead bodies and, seeing the then semicircular blade get stuck in one body’s thick neck, himself suggested reshaping the blade to its final triangular form. It didn’t keep the blade from getting stuck in his own big neck four years later.
The guillotine was originally designed as a way to efficiently execute criminals by severing their heads from their bodies. The device has since been used for other purposes, such as public executions and destroying biological specimens. The guillotine is a type of execution machine that uses a blade to cut the head off of a prisoner. Check out: guillotine blade
The angle reduces cutting force, enableing it to cut rather then chop or shear of the neck. It is used on all sorts of cutting imolements, metal shears, stamping tools for thin materials, paper cutters, common household sissors also dont engage all of the edge at the same time.
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Why are guillotine blades slanted or angled?
The falling weight of the blade provides the energy and the angled edge concentrates that energy on a smaller area than if it were a straight blade, it also makes a pseudo cutting or slicing motion as well rather than a chop so it is simultaneously cutting down and across making it even more efficient. It’s like cutting a crusty french stick loaf, if you try to cut across the whole width of the stick you end up crushing it and making a mess but if you angle your cut with the knife blade in contact with a smaller area it breaks through the crust and cuts the loaf without crushing it and makes a neater job.


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The diagonal edge acts as an inclined plane or wedge, allowing the same 40-pound weight of the blade assembly to exert a greater pressure on the neck’s flesh and bone, for an easier and swifter execution.
Necks look fragile but can take a lot of force, as they must to hold up our heavy heads throughout life. Reportedly, King Louis XVI was watching the guillotine tested on dead bodies and, seeing the then semicircular blade get stuck in one body’s thick neck, himself suggested reshaping the blade to its final triangular form.
It didn’t keep the blade from getting stuck in his own big neck four years later.
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The guillotine was originally designed as a way to efficiently execute criminals by severing their heads from their bodies.
The device has since been used for other purposes, such as public executions and destroying biological specimens.
The guillotine is a type of execution machine that uses a blade to cut the head off of a prisoner.
Check out: guillotine blade
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