![Boston Gear - 12 Pitch, 3.333" Pitch Diam, 3-1/2" OD, 40 Tooth Spur Gear - 3/4" Face Width, 1" Bore Diam, 14.5° Pressure Angle, Cast Iron - Best Tool & Supply](http://besttoolandsupply.com/cdn/shop/products/0178633-11_d84a0273-e6c2-4945-ada2-7e4db4a5bfb9_1024x1024.jpg?v=1626563828)
Boston Gear - 12 Pitch, 3.333" Pitch Diam, 3-1/2" OD, 40 Tooth Spur Gear - 3/4" Face Width, 1" Bore Diam, 14.5° Pressure Angle, Cast Iron
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