Concrete, Stone and Masonry Abrasives

This collection brings together concrete, stone and masonry abrasives for angle grinders and polishers, for countertop installers, tile setters and contractors who work with stone and concrete. It covers 4-1/2" diamond blades for cutting tile, granite and marble, silicon carbide masonry flap discs for finishing stone, and diamond wet polishing pads that take concrete and stone from 50 grit to 3000 grit.

• 4-1/2" diamond blades with a 7/8" arbor, including a continuous wave rim blade, for cutting ceramic and porcelain tile, granite, marble and stone, wet or dry
• 4-1/2" x 7/8" silicon carbide masonry flap discs, 10 per pack, including 120 grit, for granite, marble, stone and glass, plus wood and non-ferrous metals
• 4" diamond wet polishing pads, 11 per set: 50, 100, 150, 200, 300, 400, 800, 1000, 1500, 2000 and 3000 grit
• 5" diamond polishing pads, 7 per set: 50, 100, 200, 400, 800, 1500 and 3000 grit
• Resin-bonded diamond pads with a hook and loop back, for an angle grinder or polisher fitted with a hook and loop backer
• Pads listed for concrete, granite, marble, terrazzo, travertine, slate, glass and ceramics

Frequently asked questions

Which concrete grinding disc should I use on an angle grinder?

Use the diamond wet polishing pads on a hook and loop backer: they are the products in this collection that list concrete in their suitable materials. They are polishing pads, so start at 50 grit and work up through each grit in the set. Never exceed the maximum RPM marked on the pad or backer.

What is a masonry grinding disc used for?

In this collection, the masonry discs are silicon carbide flap discs for polishing and finishing granite, marble and stone. They fit a 4-1/2" angle grinder with a 7/8" arbor and are also listed for glass, wood and non-ferrous metals. For straight cuts in tile or stone, use one of the 4-1/2" diamond blades.

What grit concrete sanding disc should I start with?

Start with the coarsest pad the surface needs, usually 50 grit on rough concrete or stone, then move through each grit in order. The 5" set steps 50, 100, 200, 400, 800, 1500 and 3000. The 4" set adds 150, 300, 1000 and 2000 for smaller jumps. Skipping a grit leaves scratches the next pad struggles to remove.

Can I use a flap disc on concrete?

Not the flap discs in this collection. They are listed for granite, marble, stone, glass, wood and non-ferrous metals, and concrete is not on that list. For concrete surfaces, use the diamond polishing pads, which list concrete.

See the full range of diamond blades and polishing pads, and read our guides on dust and silica safety when cutting and grinding and aluminum oxide vs silicon carbide.