The Mirka COARSE CUT 6" Grip sanding disc, model 40-622-036, is a coarse abrasive disc made for heavy material removal and surface prep. This is a sanding disc designed for coarse sanding. If you are stripping finishes, leveling filler, cleaning up rough stock, or starting a multi-step sanding process, this disc is built to do the first hard part quickly.

What matters here is the cut. This P36 grit is on the aggressive end, so it is meant for jobs where speed matters more than finish quality. That makes it a practical choice for paint removal, rough shaping, blending uneven surfaces, and taking down material before switching to finer grits. In plain terms, this is the disc you reach for when the surface is still ugly and you need to make progress fast.

Mirka lists reinforced backing and dust binding properties as key features, and those are not throwaway specs. Reinforced backing helps the disc hold up better under harder sanding pressure, especially on edges, rougher surfaces, and demanding stock removal work. Dust binding properties matter because coarse sanding creates a lot of debris, and better dust control helps the abrasive keep cutting instead of loading up too quickly.

The 6 inch grip format is a common size for finish and prep work with compatible sanders, so it fits right into a lot of shop and jobsite workflows. Grip-style attachment also keeps disc swaps simple. When a disc is spent, you peel it off and get back to work without slowing down to fuss with clamps or more complicated mounting systems.

This Mirka abrasive is also broad in its material range. Based on the available product data, it is suitable for steel, mild steel, non-ferrous metal, stainless steel, cast iron, pine, hardwood, soft and resinous wood, chipboard, MDF, HDF, plastics, synthetic materials, glass fiber, lacquers, and paint stripping applications. That kind of range matters if you are moving between cabinet parts, metal repair, finish removal, and composite work without changing abrasive lines.

The pack size is another practical point. You get 25 discs per pack, which makes more sense for repeat work than buying single discs or a tiny assortment. For a shop, bodywork bench, fabrication area, or remodeling setup, that means you can keep the same coarse grit on hand for prep stages instead of running short halfway through a project.

Who should buy this? Anyone doing real prep work, not finish sanding. That includes woodworkers flattening rough stock, remodelers stripping coatings, metalworkers cleaning surfaces, and serious DIY users who need a dependable 6 inch sanding disc for aggressive removal. If you want a smoother finish-ready surface right away, this grit is too coarse. If you need fast cut, strong initial sanding performance, and a disc that can work across a wide mix of materials, this is the right kind of abrasive to start with.

Mirka COARSE CUT 6" Grip sanding disc is for the messy part of the job

This is the disc you buy when you need to remove material fast and move on to the next sanding step without wasting time.

• Who it's for: Pros and serious DIY users doing paint removal, rough leveling, heavy prep, and aggressive sanding on wood, metal, or composites.
• Why it stands out: The reinforced backing and dust binding properties make sense on a coarse disc because that is exactly where cheaper abrasives usually quit early or load up fast.
• Worth knowing: This is a coarse P36 abrasive, so do not expect a finish-ready surface. It is built to start the process, not finish it.

• What grit is this disc? This version is P36, which is a coarse grit intended for aggressive material removal and surface prep.
• How many discs come in a pack? The pack contains 25 sanding discs.
• What materials can it be used on? Based on the product data, it is suitable for wood, steel, stainless steel, non-ferrous metal, cast iron, plastics, synthetic materials, paint, lacquer, glass fiber, MDF, HDF, and chipboard.
• What size sander is it for? It is a 6 inch grip sanding disc for compatible sanders that use 6 inch abrasive discs.