This 6-inch Pearl Abrasive knot wire wheel is designed for cleaning filler and cap passes and removing adhesive residue, hard scale, rust, and paint. Its high-tensile-strength wire resists breakage, while industrial-grade construction supports durability and a long working life; it has a 5/8"-11 arbor and a maximum operating speed of 9,000 RPM. **California Proposition 65 warning:** This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.