3M™ SR Cutter
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Details
Highlights
- Removes sealants and coatings cleanly with minimal or no abrasion to underlying paints, primers or metal
- Easy-to-use cutter attaches to a rotary tool to replace time-consuming hand scraping with metal scrapers that gouge the workpiece
- Cleans without chemical solvents, eliminating chemical mess and waste
- Metal mandrel fits a right angle power tool
- No. 3 cutter is for flat applications—its 0.4" diameter fits between rivets and into tight spaces
- No. 8 cutter is 1" in diameter and has an internal cavity designed to fit directly over rivets or other protrusions for thorough cleaning
- Primarily used in the aerospace industry
The 3M™ SR Cutter is a plastic rotary cutting tool with an attached 1/4"-28 male threaded metal mandrel for use on slow speed right angle drills. The SR Cutter works quickly and efficiently to peel off sealants or other thick coatings with minimal to no abrasion to the underlying base material, replacing tedious scraping by hand and messy chemical solvents.
Removal of sealant from fasteners
We designed the 3M™ SR Cutter (PDF, 1.6 Mb) to save time and increase productivity for cleaning operations typical in the aerospace industry. Two different sizes are available to enable effective coating removal—No. 3 for flat surfaces and No. 8 for cleaning on and around rivets or other fasteners. The cylindrical blades work both horizontally and vertically against the workpiece to cut through sealants such as polysulfide, polythioether, polyurethane, RTV sealants and silicones. The plastic blades work effectively without the operator having to pause and resharpen them. The SR Cutter works fast and helps eliminate follow-up work for repainting or repairing damaged coatings.
Cleanly Replaces Chemical Solvents
Not only is the 3M™ SR Cutter a great alternative to hand scraping, but it works without the use of messy chemical solvents. It enables operators to remove sealants and residues immediately, without having to wait for chemicals to act or spending time and effort handling and cleaning up a hazardous mess. Your only waste is the sealant itself.
Using the 3M™ SR Cutter
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No. 3 Cutter: For fillet seals and flat applications, place the No. 3 SR Cutter at head of sealant bead so that the side of cutter contacts the sealant. Apply firm pressure downward onto the sealant and use low rotational speed (throttle down on drill) to remove sealant from one spot without moving the drill back and forth. When the substrate is exposed, increase the rotational speed of the drill and move the tool along the strip of sealant, making sure that the cutter blades adjacent to the substrate rotate into the remaining sealant bead. |
 No. 3 (.4") |
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No. 8 Cutter: For fastener heads, be sure that the inner diameter of the No. 8 SR Cutter will completely fit over the head of the fastener. Place the cutter on top of the fastener with firm pressure. Using the drill throttle, run at low speed to cut away sealant from around the fastener. Remove the sealant by "jogging" the drill in a start-stop fashion several times—this prevents unwanted frictional heat that may degrade the sealant or blunt the cutter. |
 No. 8 (1") |
Typical properties
Large Volume Order
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| Product Type | SR Cutter |
3M™ SR Cutter
Scotch-Brite™ SR Radial Bristle DiscFor industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
