Others such as saws can be difficult because of how the guide and the blade are set up. The owner s guide that comes with any power tool will give you great pointers on what projects it is to be used for. If you have a particular project in mind, searching through all of those manuals can be time consuming. The size and the type of drill bits you need depend on the project. You can purchase them individually, but you will get a better deal if you purchase an assortment that are sold in a package. Saws are the most commonly used of the power tools out there. You should purchase four different types of saws, and you will be set to take on most any project. A good way to compare the quality of a particular type of power tool is to check reviews online from other consumers. These reviews are free to look at and very unbiased. You can also check with magazines that do comparisons such as Consumer Reports. It is a good idea to purchase a particular model and brand of power tool only after you have physically looked at it and touched it. You can find power tool accessories at retail stores, on the internet, and at home improvement stores. You will need to purchase accessories that match the brand of power tool you purchased. It is a good idea to have the model number ready when you purchase power tool accessories, especially if it is an older model. You really don t know the effect that is going to have on the operating capacity of the power tool. It is never a good idea to operate any type of power tool if you have been consuming alcohol. Your perception will be off and you could end up with a very serious injury. Some prescription medications and over the counter medications can made you groggy or sleepy as a side effect. The handles are designed to help you manipulate the power tool without too much pressure on your part. Disc sanders are commonly used for grinding. They require a stone or disc depending on the material you are working with. Orbit sanders use sandpaper. It comes in a variety of sizes and grades. The grade of sandpaper is determined by the number of sand granules on each square inch of the sand paper.