Most of us will tend to use tools until they simply stop working. However, it is beneficial for many different reasons to actually take the time to inspect our tools on a regular basis, not only to ensure that they are working correctly, but also to ensure that they are not going to be a hazard to us or others.
A simple visual inspection will usually be all that is needed as many of the signs that a tool needs changing will be obvious. Should there be signs of wear or damage or even power cords that are no longer in the state they should be in, there is a good chance that the tool will not only be working at a reduced capacity, but also that by using the tool you could be putting yourself in danger.
When it comes to power tools, accuracy and safety are intrinsically linked. If your tools are not doing exactly what you need them to do, there is a chance they could easily slip and cause damage to surfaces and even to you. Even the blades and drill bits of your power tools should be in good working order. Not only will this help to avoid accidents, but it will also ensure they are doing the job you need them to do.
Cleaning your power tool will help a great deal, but once damage is already done, it will be time to simply change your tool. Any maintenance work is likely to be not worth the cost or effort and, instead, new tools are likely to offer a huge amount of extra safety and efficiency.
With new tools, brand can make a difference, and buying a respected brand such as Makita will offer you something that is not only extremely effective, but Makita tools are also likely to last longer, saving you money in the long run too.