Have you ever been in the middle of using a power tool like a circular saw, when it starts straining or catching in whatever you're trying to cut? Well, the problem might not be with the tool you're using - you might be using the wrong extension cord. Heavy-duty tools need heavy-duty extension cords to supply the power they need to work properly.
When you go to buy an extension cord, keep in mind what you'll be using it for. Extension cords come in a variety of sizes called gauges and the smaller the gauge number, the more heavy-duty the cord. Most tool manuals will tell you what gauge to use. Of course, you can use a heavier-duty cord than a manual indicates, but not a lighter one.
For example, a hand drill will work just fine with a 16-gauge cord, but an air-compressor needs a 10-gauge extension cord. You can use smaller tools with lower gauge cords, but you shouldn't use larger, more powerful items with high gauge cords. It's best to get a high-quality, low-gauge cord that you can use with anything.
Another thing to keep in mind is where you'll be using the cord. Cords rated for outdoor use have better insulated wires, plugs, and receptacles. And if you're using the cord outside, think about how far from an outlet you have to go. Use the shortest cord possible to avoid voltage loss to your tool. Don't use a 100' cord to go only 20'.
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