The cover for efficient dust extraction. The cover serves two purposes. It creates a tight seal on the housing side of the circular saw for more effective dust extraction and can also be used as a false joint stop. Low friction thanks to hard-fibre lateral gliding surface|Can also be used in combination with the guide rail. Cutting false joints|Wooden ceiling|Cutting materials that produce a lot of dust. can also be used as false joint set|cover for improved dust extraction. for TS 55, TS 55 R, TS 55 F, TS 60 K, TSC 55, TSC 55 K, TSC 55 KS