Assorted sanding disc sizes arranged on the workbench.

Sanding Discs

Premium Sanding Disc Sizes for Ultra-Smooth Finishing

How to Choose the Right Sanding Disc Size

Choosing the right sanding disc sizes helps balance coverage and control. Larger discs work well on broad, flat surfaces, while smaller discs offer better precision around corners and contours. Check your sander's specifications to confirm the compatible diameter and backing pad before purchasing.

Sanding Disc Attachment Types and Compatibility

Hook-and-loop discs allow quick changes between grits, while adhesive-backed discs attach to compatible backing surfaces. Other mounting systems require specific hardware. Always verify disc dimensions and equipment requirements to ensure secure mounting and consistent performance. When comparing metal finishing supplies, consider your equipment and how frequently you change abrasives.

Explore sanding discs from Infinish or contact the team for help finding suitable products for your needs.

Frequently Asked Questions

What sanding disc sizes do you offer?

We carry 5-inch and 6-inch sanding discs, conditioning/prep discs, and a selection of miscellaneous sizes and bargain discs. Each size has its own collection, so you can go straight to the diameter your tool needs.

Which brands of sanding discs do you carry?

We stock from trusted brands such as Norton, Carborundum, and Merit.

What are conditioning and prep discs used for?

Conditioning and prep discs are non-woven discs for light surface work. Typical uses are cleaning and preparing a surface before finishing.

Can a sanding disc remove rust?

Abrasive discs can remove surface rust and loose oxidation, depending on their material and aggressiveness. Deep corrosion or pitting may require additional treatment before the surface is ready for finishing.

Can I use the same sanding disc for metal and wood?

Not always. Abrasive composition and disc design affect performance across materials. Choose a disc made for your workpiece, and follow the manufacturer's recommendations to avoid poor results or contamination.

Why does my sanding disc clog so quickly?

Soft or ductile materials, such as aluminum, can accumulate on abrasive surfaces. Using a disc designed to resist loading and cleaning it when appropriate may help maintain performance.