The Mirka COARSE CUT 2.75" x 16.5" Grip, Model Number 40-663-036, is a coarse sanding strip built for fast material removal on a wide range of surfaces. This is a sanding strip designed for coarse sanding, surface prep, and paint removal. If you need an abrasive that can handle rough stock removal without giving up flexibility, this one is aimed at that first-pass work where speed matters more than finish quality.

This P36 abrasive is meant for the kind of work that starts ugly and gets cleaner from there. It is a good fit for stripping paint, leveling rough wood, knocking down filler, and cutting through surface buildup on metal or composite materials. Because it is a coarse sanding product, the point is to remove material quickly and get the surface ready for the next sanding step, not to leave a finish-ready surface.

Mirka builds this COARSE CUT strip with a specially reinforced backing material. That matters because coarse sanding puts more stress on the abrasive than finish sanding does. A stronger backing helps the strip hold up longer during aggressive passes, while the built-in flexibility makes it useful on rounded surfaces where stiff abrasives can lose contact or wear prematurely at the edges.

Another practical advantage is Mirka Progressive Bond dust-binding technology. On coarse sanding jobs, clogging is what kills performance fast. When dust packs into the abrasive, cutting slows down and heat builds up. This dust-binding design is intended to keep the strip cutting more consistently and reduce the downtime that comes from swapping out loaded abrasives too early.

The application range is broad. According to the product data, this abrasive is suitable for steel, mild steel, non-ferrous metal, stainless steel, cast iron, paint removal, glass fibre, synthetic materials, chipboard, plastics, pine, hardwood, soft and resinous wood, lacquers, and MDF or HDF. That makes it a solid choice for shops and jobsite users who move between woodworking, metal prep, and renovation work and do not want a one-material-only abrasive on hand.

The grip-style format and 2.75 inch by 16.5 inch size make it a specific sanding strip rather than a general sheet. If your setup uses this size and attachment style, you get an abrasive made for fast removal with good flexibility and edge wear resistance. It is sold in a 50-piece pack, which makes sense for regular production sanding, refinishing work, or any workflow where you burn through coarse grits as part of normal prep.

Who should buy it? This is a good pick for woodworkers, metal fabricators, automotive refinishing users, remodelers, and serious DIYers doing surface prep and removal work. If your job starts with taking off rust, paint, old finish, or rough stock before moving to finer grits, the Mirka COARSE CUT 2.75" x 16.5" Grip is the right kind of abrasive for that stage.

Mirka COARSE CUT 2.75" x 16.5" Grip is made for the ugly part of the job

If you need to remove material fast, strip finish, or get a rough surface under control, this is the kind of abrasive you reach for before the finesse work starts.

• Who it's for: Users doing serious prep work on wood, metal, paint, composites, and sheet goods.
• Why it stands out: The reinforced backing, flexibility on rounded surfaces, and dust-binding design all make sense for aggressive sanding where cheaper strips tend to clog or break down early.
• Worth knowing: This is a coarse P36 strip, so expect fast removal, not a clean finish. Plan on stepping through finer grits after this stage.

• What is this abrasive designed for? It is designed for coarse sanding, including fast stock removal and paint stripping or removal.
• What materials can it be used on? Product data lists steel, mild steel, non-ferrous metal, stainless steel, cast iron, glass fibre, synthetic materials, chipboard, plastics, pine, hardwood, soft or resinous wood, lacquers, and MDF or HDF.
• Is this meant for finish sanding? No. P36 is a coarse grit intended for aggressive removal and early-stage prep before moving to finer abrasives.
• How many sanding strips come in a pack? This part number is sold in a 50-piece pack.