Weiler 50803 Big Cat Flap Disc, 4-1/2 Dia., 40 Grit

The Weiler Big Cat type 27 high-density zirconia alumina abrasive flap disc features a phenolic backing for reinforcement and an unthreaded round hole for easy attachment to grinding tools. Thicker than standard discs, it is ideal for use on flat, irregular, and curved surfaces. The self-sharpening zirconia alumina abrasive is more durable than aluminum oxide, allowing for fast material removal rates and aggressive grinding. This results in a high-quality, consistent finish and a 30-40% longer life compared to standard flap discs. This versatile disc is commonly used for weld blending, deburring, deflashing, edge chamfering, stock removal, and grinding and finishing in one step. It is designed with a flat surface and is typically used with right-angle grinders at a 0- to 15-degree angle, with an unthreaded round hole for easy attachment to the grinding tool. The tool's arbor passes through the central hole in the disc for secure fastening.

Abrasive flap discs are constructed from overlapping pieces of coated abrasive attached to a hub, reducing finishing time and cost by combining grinding and finishing into a single step. Coated with adhesive, these discs utilize abrasive grains attached to a backing of paper, plastic, or cloth. The action of a flap disc is similar to that of a sanding disc, with grinding or polishing occurring on the face of the disc. They are utilized for various applications, ranging from shaping parts to fine finishing, depending on the grit size. Lower grit numbers like 40 are coarse and remove excess material to shape parts, while higher grit numbers like 400 are fine and help achieve a smooth surface finish.

Weiler, a manufacturer of precision brushes, abrasives, and maintenance products, was established in 1898 in Germany and is headquartered in Cresco, PA. The company is ISO 9001 certified, ensuring high-quality standards. Zirconia alumina abrasive is self-sharpening and more durable than aluminum oxide, making it a reliable choice for Type 27 depressed center flap discs used for various grinding and finishing applications. The phenolic backing provides durability and reinforcement, while the high-density abrasive and larger flaps offer extended life over standard flap discs. The unthreaded round hole allows for easy attachment to grinding tools, providing efficiency and effectiveness during use.

product information: