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The Osborn 99039 is a knot wire cup brush designed for deburring, finishing, and cleaning applications. This 3-inch diameter brush features 0.020-inch steel wire knots arranged in a cup shape, offering an aggressive yet controlled brushing action. The 5/8-11 NC arbor hole allows for easy installation on compatible power tools.
The knot wire cup brush effectively removes burrs, rust, and surface contaminants from metal surfaces. Its cup design allows for efficient brushing on flat and contoured surfaces. The sturdy steel wire construction ensures long-lasting performance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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