Unbranded 10-Pack Glass Cutter Replacement Wheel crafted from durable steel and features a precise 120-degree cutting angle, ensuring clean and accurate cuts. These replacement wheels are compatible with various cutting machines, including F-3000, F-3100, 8400, and 7554. The Fletcher-Terry Steel Wheel Glass cutting Unit (SU01) is 120 and can score glass up to 1/4 inch thick. It is compatible with current Fletcher models such as F3000's, FSC's, and 3100's, as well as older models like 8448 and 8460. Each tube contains 10 replacement wheels, providing you with a reliable supply for your glass cutting projects.