The Forney 72375 5-Inch by 2-Inch Type 11 Cup Wheel For Steel Grinding is designed for removal of large amounts of stock. 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. 5-Inch (127 mm) by 2-Inch (50.8 mm) with 5/8-Inch - 11 threaded arbor. A16Q with Max 7,250 RPM. Proof of purchase required. neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.