3M 7000008925 Microfinishing Film Roll 362L 30 Micron

Product Description

The 3M 7000008925 is a precision microfinishing film roll in the 362L series, designed for close-tolerance surface finishing on metal, plastic, and composite materials. It measures 4 inches wide by 150 feet long and cuts at a 30-micron grade using aluminum oxide abrasive bonded to a high-strength polyester film backing. The keyed core fits 3-inch arbors for roll superfinishing applications. This abrasive is built for consistent, repeatable stock removal where surface geometry and finish uniformity are critical. Machinists, automotive drivetrain specialists, and precision metalworking shops are the primary users.

This roll is suited for superfinishing and lapping operations on metal shafts, bores, and bearing surfaces, as well as automotive powertrain components. It also performs on plastic, fiberglass, wood, and solid surfaces where a controlled, fine finish is required. The anti-loading free-cut coating helps maintain cutting efficiency across extended use, making it appropriate for both production and repair environments including paint spot repair and composite finishing.

Key Features

• 30-micron aluminum oxide abrasive for precision, close-tolerance finishing
• High-strength polyester film backing with resin bond for durability and dimensional stability
• Anti-loading free-cut coating extends abrasive life and maintains cut rate
• Keyed 3-inch core for positive registration on superfinishing roll equipment
• 4-inch width by 150-foot length supports extended production runs
• Suitable for metal, plastic, fiberglass, wood, paint, and solid surface applications

Compatibility

Designed for use on roll superfinishing machines that accept a keyed 3-inch core. Suitable for finishing metal powertrain components, precision shafts, bores, plastic substrates, fiberglass, wood, and solid surfaces in both production and repair settings.

Installation Notes

Installation is performed by machinists or finishing technicians familiar with roll superfinishing equipment. Ensure the machine spindle is fully stopped and locked out before loading or changing the roll. Align the keyed core to the drive spindle to prevent slippage during operation. Follow the equipment manufacturer guidelines for feed rate, contact pressure, and coolant use to achieve the rated micron-finish result.

Technical Specifications

• Series: 362L
• Abrasive Mineral: Aluminum Oxide
• Micron Grade: 30 Micron
• Width: 4 inches
• Length: 150 feet
• Core Size: 3 inches (Keyed)
• Backing: High-Strength Polyester Film
• Bond Type: Resin
• Unit of Measure: Roll
• Minimum Order Quantity: 4
• Weight: 3.06 pounds
• UPC: 00051111546543

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000008925