52810 - Sait 3A 5-Inch Fiber Sanding Disc 36 Grit Aluminum Oxide (100-Pack)

Industrial Grade 5-Inch Fiber Discs for Metalworking

The Sait 52810 3A Fiber Disc is a staple abrasive solution for industrial fabrication and manufacturing shops. Designed with a premium aluminum oxide grain, the 3A series is engineered to provide consistent, reliable performance on a wide variety of ferrous metals. This 5-inch disc features a coarse 36 grit, making it the ideal choice for heavy stock removal applications where speed and efficiency are paramount. The closed coat structure packs the abrasive grains densely on the disc surface, which translates to more cutting points in contact with the workpiece and a more aggressive material removal rate.

Durability is a key feature of the Sait 52810. Built on a heavy-duty fiber backing, these discs are rigid enough to withstand the high pressure required for grinding down welds and removing heavy scale, yet flexible enough when used with the appropriate backing pad to blend contours effectively. The resin-over-resin bonding system locks the grain in place, resisting heat buildup and extending the life of the disc even under demanding conditions. This ensures that operators spend more time working and less time changing out worn abrasives.

Sold in a bulk pack of 100, this product is tailored for high-volume operations looking to optimize their consumable costs without sacrificing quality. Whether you are working with carbon steel, structural steel, or stainless steel, the Sait 3A fiber disc delivers a uniform scratch pattern and dependable cutting action. It requires a standard backing pad for use on angle grinders.

Key Industrial Benefits

• Cost-Effective: The 3A Aluminum Oxide formulation provides a long service life at an economical price point.


• High Removal Rate: 36 grit is aggressive enough for rapid shaping and leveling.


• Versatile Compatibility: Fits standard 5-inch angle grinders with a 7/8-inch arbor.