3M™ Cloth Belt 384F, 50+ XF-weight, 6 in x 48 in, Film-lok, Single-flex, 5 ea/Case, Special Packaging

$20.47 / Each

SKU	7100406073
Legacy SKU	60440624199
UPC	00068060126740
Catalog Number	384F
Product Number	384F

3M Cloth Belt 384F is a general-purpose aluminum oxide cloth-backed belt recommended for metal deburring, general metalworking, and some woodworking applications. It is optimized for use on mild steel and carbon steel, and is also effective on softer metals like aluminum, bronze and brass.

General purpose belt delivers consistent, reliable performance on a wide range of substrates
Polyester waterproof backing holds up for wet and dry applications
XF-weight cloth backing withstands grinding and heavy sanding
Resin bond withstands high heat and pressure
Aluminum oxide abrasive mineral offers reliable performance and performs well on many substrates
Suitable for use on a backstand or benchtop belt sander and for stroke sanding, portable belt grinding, and wide belt grinding and finishing

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High-Quality Cloth Belt Materials

Durable

Versatile

Multi-Functional

Product Dimensions	Imperial	Metric
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Shipping Dimensions
Weight	4.027 lb
Length	13.75 in
Width	11.31299 in
Height	6.6248 in

PRODUCT FAQ

What is the XF-weight designation on this belt, and why does it matter?

XF-weight refers to the grit density and thickness of the abrasive coating. XF stands for "extra fine," meaning this belt has a higher concentration of abrasive particles, which gives you a smoother finish and longer belt life compared to standard weights. It's perfect when you need quality results on your finishing work!
What does "Film-lok" mean, and how does it help during sanding?

Film-lok is 3M's proprietary bonding technology that uses a polyester film backing to securely attach the abrasive minerals to the belt. This means less dust and debris coming loose during use, so you get cleaner operation and the abrasive stays where it should be for better performance.
Why would I choose a single-flex belt over other options?

Single-flex belts have more flexibility in one direction, which makes them ideal for sanding curved or contoured surfaces. They conform nicely to your workpiece while still maintaining the strength you need for consistent, reliable sanding performance.
What does the "6 in x 48 in" dimension tell me about compatibility?

Those dimensions are the width and length of the belt. The 6-inch width and 48-inch length mean this belt is designed for sanders with those specific specifications, so it's important to verify your equipment uses this exact size before ordering to ensure a perfect fit.
Why does this product come in special packaging, and what's the advantage?

Special packaging protects the belts from moisture and damage during shipping and storage, which helps preserve the abrasive quality and bonding integrity. Your belts arrive in excellent condition and ready to deliver top performance right out of the box!

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.

```html Consistent, Reliable Performance

The 3M Cloth Belt 384F is engineered with fast-cutting aluminum oxide abrasive grains that are securely resin-bonded to a robust XF-weight polyester cloth backing. This specialized construction delivers the sustained cutting action and extended service life that metalworking professionals demand when tackling aggressive material removal tasks. The belt features a closed coat design that ensures a uniform, refined surface finish while also enabling the creation of desired grain patterns on workpieces. The backing material is treated to be waterproof, making it equally effective for both wet and dry grinding and sanding operations across diverse industrial applications.

Fast-Cutting Grain with Durable Construction

Aluminum oxide mineral stands as the preferred abrasive choice for industrial professionals worldwide, valued for its exceptional cutting efficiency, superior durability, and remarkable longevity in demanding applications. This versatile abrasive material accommodates processing across an extensive range of substrates in both woodworking and metalworking operations, including ferrous alloys and various other metals. As the most widely utilized industrial abrasive globally, aluminum oxide consistently delivers reliable results. Within the 3M Cloth Belt 384F, abrasive particles are firmly secured to the cloth backing using a resin bonding system that creates an exceptionally strong adhesion capable of enduring elevated temperatures and intense pressure during operation. These performance characteristics make the belt particularly well-suited for specialized applications including gate grinding, weld seam removal, deburring operations, and precision finishing work.

3M Engineered for Optimal Performance

3M's abrasive engineering expertise spans more than a century of innovation and development in abrasive belt construction and manufacturing. As a recognized industry leader in supplying abrasive solutions to metalworking and woodworking sectors, 3M maintains an extensive portfolio of premium-quality abrasive products designed to address complex industrial requirements. The 3M Cloth Belt 384F represents the culmination of this engineering expertise, having been specifically developed to enhance cutting performance and extend working life for superior results on general purpose sanding and grinding tasks. This product exemplifies how 3M's commitment to scientific advancement continues to produce innovative solutions that elevate performance standards in industrial manufacturing and processing applications.

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