Quickly Sharpen a Knife...with a Dremel!

Ever needed a knife sharpened really fast? Well you have come to the right Instructable! This Instructable will teach you how to sharpen, and clean up, a knife with a Dremel!

Step 1 Items Needed

Okay so first off you will need a couple key tools and objects.

Tools:

• A Dremel.
• A vice or something to hold the knife while sharpening.
• Some Dremel bits. Part No. 932 -- A Aluminum Oxide Grinding Stone -- Part No. 401 -- Mandrel -- Part No. 414 -- 1/2" Felt Polishing Wheel -- Part No. 421 -- Polishing Compund -- ( Part Nos. 401, 414, and 421 are optional. Only get these if you want to polish your knife.)

Objects:

• Safety Goggles.
• An old, or new, blunt knife.

Comments

[Denger]

With all due respect, electric grinders of any speed should only be used on a knife you don't care about very much. They will quickly and irreparably damage the knife blade. While they are faster, grinders are extremely poor substitutes for hand sharpening with mill file, stones, steel or ceramic crock sticks and a leather strop. Sharpening by hand with the proper tools & techniques will actually improve, rather than permanently destroy, a knife's original factory edge.

[2 stroke]

i use an angle grinder not recommended lol i dont have a dremel

[weaponscollector94]

you should never use a rotary grinder on a knife, it heats the blade up and the edge will loose the temper

[2H2H]

cool I got da same knife there blades get dull very very very very very very fast compared to my Gerber abd my Switchblade.

[N467RX]

The best idea to start is to use utility knife blades (non-snap type ones), that way if it gets damaged you can replace it for cheap ($2 for a 5-pack or so).

[im_tux]

nice idea but there are carbide sharpeners that work well for about $5 qand wont damage the blade. they work fast and put a 25 degree angle so they stay sharp longer

[kevinlee]

Take care not allow the knife blade to get too hot or the metal will loose temper and it will dull very quickly. Also the angle you get using the lawnmower blade sharpening attachment works pretty nice if you sharpen both sides.

[garrettmikesmith]

you should grind the edge to total 25 degrees, so like 12.5 degrees on each side. and statistics say people overestimate angles by 5-10 degrees, so what looks like 12 could be 20 on each side, and then you could come out with a 40 degree blade, and that would be pretty blunt. other that than that, nice idea. i never thought to try that, although i could see how a beginner could easily screw up a knife.