Wire brushes are great for cleaning nozzles, tool corners and other jobs that require a little cleaner. I've found that keeping my tools clean helps me manage them better, so I invest in inexpensive ways to do this. I usually use steel brushes for hard carbide surfaces like milling cutters. and other surfaces that can be scratched by steel. I use nylon brushes for wood and plastic. They are tough enough to be cleaned without scratching the surfaces. There is an extra brush in the six brush set so I'm not tempted to keep using the first brush after it was meant to be thrown away. Over time, all of these brushes tend to curl, get very dirty, and should be thrown away. If only because of the temptation to experiment "againโ with the brush before buying a new one. Recommended for all shops where you want to keep your instrument in good condition.
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