2 Pack 4" Cup Knotted Wire Wheel Angle Grinder Brush 4 Twist-Style Wire Cup Brush Listing Is For Two 4" Wire Cups. Specification 2 Brand" New 4 Cup Brush Knotted Wire Wheels 5/8 Thread X 11NC Fits Most 4.5" Angle Grinders Use" To Remove Adhesive Residues; Hard Scale Rust; Paint; Corrosion; And Excess Rubber From Rubber To Metal Bonded Parts These Are Very Coarse And Stiff Steel Wire Wheels That Would Cost Around 25.00 Dollars Each In A Store; This Is Not The Junk Flimsy Kind Max Rpm 8500