Product Details
The 3M™ Microfinishing Film Roll 372L measures 4 inches by 150 feet with a 3-inch core and features a 50 micron grit. It consists of an aluminum oxide micron roll resin bonded to a 5 mil polyester film backing, which includes a friction grip coating for slip resistance. This high-strength film backing combined with micron-graded aluminum oxide mineral ensures precise, uniform, close-tolerance finishes, making it suitable for precision finishing of cylindrical surfaces such as automotive camshafts and crankshafts. The film offers fast cutting and comes in long length rolls, ideal for applications in fine finishing, powertrain microfinishing, and superfinishing. The product is designed to meet professional standards for durability and performance. Warranty information is provided with the product to assure quality and customer satisfaction.








