Makita 1 Piece - 3 Inch Knotted Wire Cup Brush For Grinders - Heavy-Duty Conditioning For Metal - 3" x 5/8-Inch | 11 UNC 1 MAKITA Premium Heavy-Duty Knotted Wire Cup Brush for Metal | 3" x 5/8-Inch - 11 UNC Standard Thread - 0.020" Thick Wire | Engineered for use on Makita 4-1/2 Angle Grinders and compatible with All 4-1/2 Angle Grinders with 5/8 arbor CONDITION UP TO 4X Longer than lower quality or low priced brushes due to Makitas carefully selected Premium Carbon Steel bound and balanced expertly & proprietarily together for unsurpassed knotted integrity for longer life, safety, smoothness and ease of use than other wire cups in its class EASILY & SMOOTHLY remove heavy corrosion, rust, paint, spatter and scale while also clean weld edges, debur metal and condition your steel or metal surface with Makitas proprietary .02 tempered carbon steel wires, that reveal a soft, pliable and paint-ready surface AVOID INJURY & Premature Wear with lower priced brushes by relying on Makitas carefully balanced Wire diameter, density, length and bonded knotted integrity for superior reliability, long life, safety, smoothness and ease of use than competitor wires that fly apart and prematurely tear, resulting in injury and project delays | For best results, apply gentle perpendicular pressure ensuring full contact with wire tips only THICK, Knotted CUP design is ideal for heavy-duty, aggressive surface conditioning on expansive surface areas while Thick, Knotted WHEEL design is best for restricted surface areas, small spaces and borders like pipes | Thinner, Crimped CUP design delivers maximal flexibility and fatigue resistance while also minimizing scratch risk in expansive metal surface areas