Type 27 Or 29 Flap Disc

Type 27 or 29 flap disc is a versatile abrasive tool that is used in various applications. It consists of abrasive flaps that are arranged radially around a central hub. These flaps are made of abrasive cloth or paper and are designed to wear and self-sharpen during use. The disc comes in two different types - type 27 and type 29 - which have different backing shapes and are used in different applications.

Type 27 flap discs are best suited for grinding flat surfaces and finishing edges. They have a flat backing that provides stability and allows for better control during use. Type 29 flap discs, on the other hand, have a conical shape that is better suited for contour grinding and finishing. The curved backings of type 29 discs provide greater flexibility and are designed to reach into tight spaces and corners.

The grit range of flap discs typically starts from 36 grit and goes up to 120 grit. The size range of flap discs varies from 4 inches to 7 inches. The most common size is 4.5 inches. Different sizes and grits are used for various applications and metal types.

Both type 27 and type 29 flap discs come in different backing materials, such as fiberglass, plastic, or metal. The backing material provides strength and support to the flaps, and there are advantages to using each backing type. Fiberglass backing is the most commonly used backing type due to its strength and durability. Plastic backing is lightweight and flexible, making it ideal for contour grinding applications. Metal backing provides the highest level of strength and support, making it the perfect choice for heavy-duty applications.

Flap discs are typically packaged in quantities of 10, 20, or 25 per box, depending on the vendor and size. However, customer needs can be customized depending on the order volume.

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