Material These carbon brushes are made from carbon and copper material for durable performance. Fitment Compatible with a wide range of Makita power tools, including 4334D jigsaw, 5621RD circular saw, BHR202 and BHR241 drills, BHS630 and BJR181 reciprocating saws, and more. Quantity Pack contains 4 carbon brushes to provide ready replacements for your tools. Improved performance Replacing worn carbon brushes restores your tool to its optimal performance, enabling more efficient and precise operation. Use scenarios - Replace worn brushes in a 4334D jigsaw to regain smooth, accurate cutting and tracking. - Refresh a 5621RD circular saw to maintain consistent speed and cutting performance under load. - Maintain drilling or sawing efficiency in BHR202/BHR241 drills or BHS630/BJR181 reciprocating saws for cleaner holes and steadier cuts. Notes Designed to fit a variety of Makita models; check compatibility with your specific tool if in doubt.