3M™ Cloth Belt 384F, 36+ XF-weight, 6 in x 48 in, Film-lok, Single-flex, 5 ea/Case, Special Packaging

$22.45 / Each

SKU	7100405661
Legacy SKU	60440624165
UPC	00068060126719
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	4.577 lb
Length	13.75 in
Width	11.31299 in
Height	6.6248 in

PRODUCT FAQ

What is the XF-weight designation and why would I choose it over other weights?

XF-weight refers to the grit density and coating weight of the abrasive belt. XF stands for "Extra Fine," which means this belt has a higher concentration of abrasive material. The 36+ XF-weight is ideal when you need aggressive material removal with excellent durability and a longer belt life compared to standard weights.
What does "Film-lok" mean, and how does it benefit my work?

Film-lok is 3M's advanced adhesive technology that bonds the abrasive coating to the backing with exceptional strength. This means the abrasive particles stay firmly attached to the belt during use, so you get consistent performance throughout the belt's life with less dust generation and fewer particles flaking off.
Can you explain what "Single-flex" means and when I would use it?

Single-flex refers to the backing construction, which allows the belt to flex in one direction while remaining stable in the other. This design is perfect for drum sanders and other machines that require the belt to wrap around a curved surface, giving you better contact and more uniform sanding results.

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.

Consistent, Reliable Performance

The 3M Cloth Belt 384F is engineered with fast-cutting aluminum oxide abrasive grains that are securely bonded to a sturdy XF-weight polyester cloth backing. This combination delivers sustained cutting action and extended service life, making it particularly well-suited for demanding metalworking operations that require both power and precision. The closed coat construction ensures a uniform, refined surface finish and can be effectively used to create specific grain patterns on workpieces. The backing material is waterproof, allowing this abrasive belt to perform effectively in both wet and dry working environments.

Fast-Cutting Grain with Durable Construction

Aluminum oxide has established itself as the preferred abrasive mineral among industrial professionals worldwide, valued for its superior cutting efficiency, exceptional durability, and extended operational lifespan. This versatile abrasive performs reliably across numerous materials used in both woodworking and metalworking applications, particularly with ferrous alloys and other metal compositions. As the most widely utilized industrial abrasive globally, aluminum oxide grains are permanently adhered to the cloth backing through a resin bonding process, establishing a robust connection capable of enduring intense heat and mechanical stress. These properties make the 3M Cloth Belt 384F exceptionally effective for specialized tasks including gate grinding, weld removal operations, deburring processes, and various finishing applications.

3M Engineered for Optimal Performance

With more than a century of expertise in abrasive technology, 3M has become an industry leader in supplying advanced abrasive solutions to the metalworking and woodworking sectors. The company maintains a comprehensive portfolio of premium abrasive products specifically designed to address the most challenging industrial requirements. The 3M Cloth Belt 384F represents the culmination of specialized engineering focused on enhancing both cutting performance and material longevity for general-purpose sanding and grinding operations. This product exemplifies how 3M's commitment to scientific innovation continues to deliver improved technological solutions for complex industrial applications.

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