Always unplug the drill before you change the bit in it. A drill is a very useful power tool is versatile enough to be used for a variety of projects. Making sure you use the right type of drill for the material you are working with as well as the right type and size of drill bit will ensure you get the best possible results from your drill. This is to meet the budget of their range of consumers without causing a great deal of confusion. Bosch sales high quality power tools in a blue case, then sells lower quality power tools in green cases. In addition, they are the manufacturer for the lower end power tools under the brand name Skil. How do you know if you should purchase a name brand power tool or a discount brand? A mainly unknown brand of power tool, Porter-Cable, has introduced a circular saw kit that features the blade on the left hand side. The reviews of this power tool show it is very inexpensive, around $100 and sees to work very well for a variety of materials. This might be a great saw for left handed individuals to try out. A respirator is recommended as well to prevent you from inhaling the dust. This is especially important if you are working at an angle where the dust is coming directly down on you, such as overhead sanding. You can also choose to purchase a dust bag for the sander. Wearing long sleeves is a good idea as well. You should stay away from power tools while taking them as well. Some people just don t feel comfortable operating power tools. That is fine, and you shouldn t feel forced into doing so. This is just opening the door for potential accidents to happen. If you are willing to learn to operate specific power tools that is one thing, but if you feeling pressured to do so you are going to have too much anxiety to operate it. Regardless of the brand or size of router you choose to work with, it will have three basic parts the base, motor, and collet. The motor is actually located inside of the base. The bit of the router is held in place by the collet. There are several different bases to choose from. A fixed base has a bottom plate that is round, side handles, and an adjustable height.