There are two important things to consider when looking after spoon bits that will help to lengthen their lifespan and ensure you can get the most out of your tools.
Drilling speed
The first thing to remember is that you should always use a slow speed if you are using your spoon bit in a drill press or lathe. Running the bit too fast can cause the bit to heat up through friction, which can make the bit lose its sharp edge quicker.
Storage
As spoon bits are usually not coated, it is also important to make sure they are stored in a dry place to prevent rust, which will dull the blade and ruin the tool.