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The 3M 7100052027 is a diamond microfinishing film belt engineered for precision finishing on hard and difficult-to-grind materials. Built on a durable polyester film backing with micron-graded diamond mineral, this belt delivers close-tolerance surface finishes on thermal spray coatings, ceramics, carbides, chilled iron, and granite. At 98.5 inches long and 4 inches wide, it is sized for wide-belt and specialty finishing equipment. The polyester film construction allows use dry or wet with water or oil-based lubricants, giving technicians flexibility across different finishing setups.
This belt is suited for industrial grinding and surface finishing applications where tight dimensional tolerances and fine surface finishes are required. It handles medium stock removal on hard metals and engineered materials, making it a practical choice for thermal spray finishing of contour and complex shapes. Machinists, toolroom technicians, and surface finishing specialists working with carbide tooling, ceramic components, or thermal spray surfaces will find this belt well matched to those demands.
Designed as an OEM-style replacement and standard consumable for wide-belt microfinishing and precision surface grinding equipment that accepts belts measuring 98.5 inches long by 4 inches wide.
Belt installation should be performed by qualified grinding or finishing machine operators following the machine manufacturer's guidelines. Confirm belt tracking and tension before powering on the machine. Inspect the platen or contact roll for wear before mounting a new belt, as surface irregularities can affect finish quality. Always follow applicable shop safety practices including eye and hand protection when handling abrasive belts.
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