Milwaukee 49-54-1026 Clear, 7-Inch Diameter,1-3/16-Inch Center Hole Sub-Base The product is easy to use The product is durable The product is manufactured in United States High-strength, polycarbonate construction Industry standard 1-3/16 in. center hole accepts Milwaukee template guides for pattern routing Industry standard diameter (7 in.), bolt design, and bolt-hole pattern Superior cut capacity (9 in. from board edge) Limited Warranty