Maintain tools, molds, and dies. These stones can be used by hand or in power tools with a compatible holder.

Smooth ribs, slots, teeth, and other fine features—these stones are thin enough to slip into hard-to-reach areas.

Remove the tough scale left by the EDM (electrical discharge machining) process.

Keep stones of different grits on hand to handle every stage of polishing on the smallest ribs, slots, and crevices.

Keep stones in different grits on hand to smooth ribs, slots, teeth, and other fine features. The stones in these assortments are thin enough to slip into hard-to-reach areas.

Prevent uneven polishing marks. Unlike other polishing stones, these stones never leave your work surface for a uniform finish.

Remove rust, burrs, and other flaws that keep your gauge blocks from wringing together.

Keep stones in different grits on hand for polishing high-grade mold steels, such as P20 and H13 tool steel and 420 stainless steel.