FELT WHEELS Use for final polishing, de-burring & honing to a razor sharp edge. Simply charge wheel while running with compound. Made with natural hard 100% wool felt so compound stays on longer. Unlike soft muslin & cotton wheels, hard felt won’t round edges & lasts for years. We offer optional mounting arbors to adapt wheels to motors & drills. 3,450 RPM maximum. Hole: 1/2"; Wheel: 6x1". Made in USA.