On Wed, 6 Jul 2016 09:36:28 -0700, Taxed and Spent
> wrote:

>On 7/6/2016 7:55 AM, Janet B wrote:
>>
>> My food processor and Ninja blades are getting dull. Is there a way
>> to sharpen them or must I buy new blades?
>> Janet US
>>
>
>There are sites on line that show you how - really,just the obvious -
>take the bottom off so the blade is accessible (for the blender), then
>sharpen the blade like any other blade.

I occasionally dress my ancient Oster blender blade, same way I touch
up all blades, draw file. Use a small machinist file to draw file
your processor blads. An ignition file works well, auto parts stores
like NAPA sell them, they're used to file the contact points inside a
distributor cap... they're inexpensive and also make a great nail file
as there are no teeth on the sides. I much prefer using hand tools
for knife work, machine tools generate too much heat so can ruin a
metal's temper. Hand tools also give one more control over how much
material is removed. There's lots of draw filing information on line.
If a blade is not too dull often a piece of fine emory paper wraped
around a file is all that's needed... any hardware store will have wet
n' dry polishing paper, the type used at auto body shops; a piece of
400 grit will be sufficient. If your blade is somewhat serrated or
rippled the emory paper can be wraped around a piece of wood of the
correct shape, often a wooden pencil works with rippled blades, for
serrated blades a triangular jeweler's file works, or a swiss pattern
file.
http://www.listoftools.com/handtools...aw_filing.html
https://www.youtube.com/watch?v=MJHvBZSJvcc
https://www.youtube.com/watch?v=UFj51A-gdz4
http://paulbudzik.com/tools-techniques/Files/files.html
http://bandsawblade.com/SimondsFiles/swisspattern.htm