As the owner of Two-Edged Sharpening LLC, I have found the following products and resources to be extremely useful in not only sharpening anything from knives, to scissors, to lawn and garden tools, and more, but also useful in learning how to sharpe...
Map
Patrick Roehrman knows anything and everything there is to know about sharpening. An excellent place to start for sure!
Highly collectible, handmade custom knives for sale online
When sharpening, this is the best way to truly find out if what has been sharpened is actually…sharp!
Andonstar AD407 HDMI Soldering Microscope
You can use this to sharpen just about anything small. Its been around for a long time. Handy little tool!
Tri-Angle Sharpmaker® - Spyderco, Inc.
You can use this to sharpen quite a few things!
Nicholson 12" Mill Bastard File - Carded
Great starter sharpener!
60 Grit Wet Dry Sandpaper Sheets 9x11 Inch
The King Sharpening stones are definitely the best!
KING Grain Sharpening Stone, #1000, Medium
Multipurpose! Not only can this be used to jump a car, but it can also be used to engrave signatures on steel!
NOCO Boost Plus GB40 1000A Car Jump Starter
If you need a honing rod to keep up with your knife usage, look no further!
Green Elephant Ceramic Sharpening Rod
Also a very good sandpaper to use for beginning sharpening!
60 Grit Wet Dry Sandpaper Sheets 9x11 Inch
Best to finish with this for beginning sharpening
Auniwaig 5PCS 150 Grit Sandpaper Sheets
Better safe than sorry! Wear these when sharpening razor sharp!
DEX FIT Level 5 Cut Resistant Gloves Cru553
This is a great concept! Especially when you have multiple sized files, you can swap them out with this handle! Time saver
5" Universal File and Saw Handle - Crescent Tools
Need to sharpen chainsaws? Then this is what you need!
Oregon 7pc Universal Chainsaw Sharpening Kit
If you need to take a lot of metal off quickly then this is what you need.
LeTkingok Hand-cranking Grinding Machine
If you need smaller flat files, DMT makes good ones!