3M™ Microfinishing Film Roll 372L, 8 in x 150 ft x 3 in 9 Micron ASO Keyed Core, 1 per case

3MSKU: 3MM60410006963-RO-DS
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Sale price$447.09 Regular price$491.80

Custom ordering is required for this item because it has been replaced by a newer model, contact us for more info.

Call: 1-800-637-6606

Email: contactus@envirosafety.com

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Description

Our 3M™ Microfinishing Film Roll 372L features micron-graded premium aluminum oxide bonded to a 5 mil polyester film backing to deliver uniform results and meet stringent surface requirements. A friction grip coating provides slip resistance for microfinishing machines where film slippage is an issue, and close tolerance work on cylindrical surfaces, such as automotive camshafts and crankshafts.

Manufacturer 3M
Brand 3M Abrasives
Main Category Abrasives
Color Blue
Packaging 1RO/CS
Weight 6.9 lb

Predictable, Consistent, Repeatable Performance
In order to achieve an extremely consistent scratch for microfinishing, we use micron graded mineral, measured at a very tight size tolerances for 3M™ Microfinishing Film Roll 372L. The resin bond ensures reliable, consistent performance. With a durable film backing, the abrasive helps achieve tight geometry and finish tolerances.

This microfinishing roll comes in a broad range of micron grades to achieve reproducible surface characteristics and geometric values that adhere to specification. In some applications, numerous grades are run simultaneously to achieve finishes that differ across the surface of a single complex part. To reduce risk of operator error, we designed Type 2 film in a range of colors – reflective of each grade. The color coding is a useful visual cue, as is sorting width by core size and side and end of roll printing and marking.

Film Backing Provides Uniformly Flat Vehicle for Finer Finish
Film backings provide a superior, uniformly flat surface to hold abrasive particles – abrasive grains don’t compress or become pressed into the backing. Highly conformable and tear resistant, the polyester film backing flexes to help achieve a consistent finish over contours and is stronger than comparable paper products, making it ideal for high production environments.

For Flawless Geometries
Manufacturers of critical automotive components have little room for error in producing parts to specification. Power generation, life, noise, vibration and friction, fuel efficiency and emissions are all tied to the finishes of crankshafts and camshafts that rotate on increasingly thinner films of oil.

Engine component surfaces and geometry can be improved by using microfinishing which removes variations in the surface, minimizes friction and manipulates metal behavior in other ways.

Recommended Applications
3M™ Microfinishing Films are used in the production of industrial components such as custom flanges and fittings for the oil and gas industry, as well as superfinishing of automotive parts, like crankshafts, camshafts and transmission parts.

A Portfolio of Abrasive Systems Solutions
From specialty abrasives designed for a highly specific purpose to versatile, jack of all trades sheets, you can find an abrasive tool to accomplish your task or perfect your system. At 3M, we draw from a wealth of original technologies and breakthrough inventions to provide a broad portfolio of abrasives that shape, finish and polish with ease and precision.

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93% of customers rate this company 4- or 5-stars
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EH Verified Customer
10-06-25

Straightforward transactions. They have what I want and it arrives promptly every time.

Margaret Verified Customer
10-04-25

After being told it was being shipped, my order was cancelled. When I emailed to ask why, I was told it was because I was overseas. This was the case, but both my billing and shipping addresses were in the US, so I don´t see why there should have been any problem.

John B. Verified Customer
10-03-25

I ordered gloves online and Envirosafety delivered the gloves.

Sunshine S. Verified Customer
10-02-25

Loved them especially working in hot environments

Kobi M. Verified Customer
09-29-25

The product I ordered was back ordered. Gustavo Martinez contacted me personally to help me get what I needed. He called multiple suppliers to see if he could get the product in pieces instead. In the end her helped me figure out that I didnt even order the correct product for my application and got the correct one ordered for me. By far the best customer service I have ever had from an online order!

Seattle R. Verified Customer
09-29-25

We were able to find what we needed at a reasonable price. Checkout was relatively easy as well. After ordering, we got a notification that the items we ordered were on backorder. It would've been nice to have that inventory be accurate on the website before placing the order, but I understand things happen. We were given the option to cancel, but since we needed those particular items in no huge rush, decided to keep it in place. We received one shipment of the ear protection, but I believe the remaining maintenance kits are still on backorder. I hope we receive them soon. Other than the discrepancy in inventory and the wait for the two shipments, things went well. When we need more PPE, we'll likely shop with them again.

Ed Verified Customer
09-28-25

Got what I ordered in good time. No complaints.

Rebecca A. Verified Customer
09-27-25

The mask parts arrived quickly and were exactly what I needed.

Sam P. Verified Customer
09-25-25

Great customer service

Charles Verified Customer
09-17-25

Very prompt delivery. I highly recommend using EnviroSafetyProducts for any of their products.

A N. Verified Customer
09-17-25

Easy place to purchase masks from. Delivered as expected and on time. No complaints.

Jeanetta C. Verified Customer
09-13-25

Products as advertised. Arrived in a timely manner

Bill C. Verified Customer
09-11-25

I only received on of the two neck braces that I was charged for.

Reply from www.envirosafetyproducts.com

Thank you for your feedback. We’re sorry for the frustration this caused. We want to clarify that your order was for one child-size cervical collar, which is what was shipped. The product photo shows both the adult and child models so customers can see the size differences, but each is sold separately.

Our team reached out by phone and email to explain this and offer you the adult size free of charge, but we regret that it left you feeling dissatisfied. If you’d like to discuss further, our management team would be happy to assist. Please contact us at: (800) 637-6606

-The Enviro Safety Team

Kent B. Verified Customer
09-11-25

Always great service

A Reviewer Verified Customer
09-11-25

The website said 1 day when ordering, the reason we purchased from you. It's been 14 days and we still don't have it. The other issue is you were not the lowest priced. I called customer service and they answered my questions but did not seem concerned at all. Actually I remember hearing a snicker or light laugh.

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