A twisted drill bit and a braided point drill bit are very similar. The difference is the twisted bit is the same diameter throughout it, while a braided point gets thinner towards the bottom. Countersink drill bits make the hole wider. This allows you to use flathead screws and get them flush with the material. This allows you to control the speed with one and the power with the other. You will get free replacement brushes for the life of your Dremel tools as well as a five year warranty. With so many Dremel accessories to choose from, it is a good idea for you to research the right accessories for the particular project you are doing as well as for the Dremel power tool you own. The Power Tools Everyone Should Own and Why Owning your own power tools is much easier than having to rent them or buy them when a household project comes up. It is much cheaper than hiring someone else to do the work if you are able to do it yourself. Since power tools aren t cheap, you can reduce the expense and still accomplish most day to day projects at home with these tools. Saws are also one of the most dangerous power tools out there because of the sharp blades and the shear power they have. Saws are also used to cut down limbs and firewood. Routers are one of the neatest power tools, in my opinion. They are great for detail work on trim or to make unique designs. You can create wonderful works of art with a router and some various accessories. Even if you use the power tool as it should be operated and have on the right safety equipment, accidents can still happen in the blink of an eye. Tripping, slipping, or falling while you have a power tool in your hand can result in an injury. One unfortunately young man was using a staple gun on a ladder with safety equipment on when he lost his footing. Some manufacturers offer high quality power tools and then middle of the road power tools. 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.