The Forney 72808 Multi-Thread Adapter mounts on any cup brush with 5/8-Inch - 11 thread and will adapt to fit both M10 by 1.25 and M10 by 1.50 angle grinders. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. Proof of purchase required. neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.