If your power tools are acting up - maybe running intermittently or making weird noises - these carbon brushes might be exactly what you need. This 2-pack replaces part number 22-18-0910 and is made from Japanese Toyo TANSO carbon, which is seriously good quality. Each brush measures 0.31 x 0.24 x 0.47 inches, so they're the perfect fit for a bunch of different power tools. Carbon brushes are wear items that gradually wear down from friction in the motor - totally normal, but they need replacing eventually. These work with models like 1001-1, 1107-1, 1201-1, 6507, 6518, and plenty others. When your tools start acting funny, swapping out the carbon brushes is often the fix. The installation is pretty straightforward if you're comfortable opening up your tools. Having two sets means you'll have a spare for next time, or you can do multiple tools at once. Seriously, for the price, it's way cheaper than buying new tools or taking them to a repair shop. Your power tools will run smooth and reliable again with these fresh brushes!