BRM BTS-4S, MEDIUM FACE-STANDARD TWIST KNOTTED WIRE WHEEL BRUSH, .020 Stainless Steel Wire, 4″ Diameter, (3/8″, 1/2″) AH, 13/16″ Trim, Approx. Running Face Width: 1/2″, Max. Free Safe Speed(RPM): 20,000Standard Twist wire wheel brushes consist of tufts twisted approximately 2/3 of their length to promote a more rugged and aggressive cutting action. The tufts of these power brushes absorb vibration which helps absorb bending and reduces wire fatigue. Used where heavy brushing action is required.








