Worked well on my Mahle flasks. You have to take your time and make sure the clip starts in the groove from the start. The action is all in the wrist, as they say. The downside is that it is made of hard plastic so is not suitable for the pro but is suitable for the weekend warrior or one off engine build.
Lisle 81780 Carbide Scraper Set: Ultimate Tool for Efficient and Precise Scraping
8 Review
π§Ό Efficient Vinyl Squeegee with Felt Wrap for Spotless Window Cleaning
4 Review
Permatex 80190 SaferScraper: 2 Refillable Blades for Efficient Cleaning
8 Review
πͺ Ultimate Windshield Cleaner: Extendable Window Cleaning Solution
3 Review