3M 7000044992 Microfinishing Film Roll 40 Micron

Product Description

The 3M 7000044992 Microfinishing Film Roll 372L is a precision abrasive roll designed for fine surface finishing of cylindrical components. It features aluminum oxide abrasive grains resin-bonded to a 5 MIL polyester film backing, delivering consistent, controlled material removal at a 40 micron grade. The backing includes a friction grip coating for slip resistance during operation, keeping the roll stable under load. This product is intended for professional machining and finishing environments where surface geometry and finish tolerances are critical. Machinists and production technicians are the primary users.

This microfinishing film roll is suited for precision finishing of cylindrical surfaces including automotive camshafts and crankshafts. The 0.472 inch width and 900 foot length make it appropriate for high-volume production or shop environments where consistent abrasive performance across a long run is required. The 1 inch core fits standard film finishing equipment. It is sold by the roll and intended for professional shop use.

Key Features

• Aluminum oxide abrasive resin-bonded to a 5 MIL polyester film backing for durability and dimensional stability
• 40 micron grade for precision microfinishing applications
• Friction grip coating on backing reduces slippage during use
• 0.472 inch x 900 ft x 1 inch core dimensions suit standard finishing equipment
• Designed for cylindrical surface finishing including camshafts and crankshafts

Compatibility

Designed for use on standard film finishing equipment accepting a 1 inch core. Suitable for precision finishing of automotive cylindrical components including camshafts and crankshafts as noted by the manufacturer.

Installation Notes

This abrasive film roll is installed and operated by machinists or production technicians using compatible film finishing or superfinishing equipment. Ensure the machine is fully powered down and locked out before threading or changing the abrasive roll. Verify the core size and roll width are compatible with the equipment before loading. Follow the equipment manufacturer's operating guidelines for feed rate and contact pressure.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Backing: 5 MIL Polyester Film
• Grit Grade: 40 Micron
• Roll Width: 0.472 inches
• Roll Length: 900 ft
• Core Size: 1 inch
• Unit of Measure: Roll
• Minimum Order Quantity: 3
• UPC: 00051141206622

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044992