★ Used twice (total usage time: 5 minutes) Car brake fluid bleeder plug. Used it because two spots were slightly rusty and wouldn't turn. Both spots turned surprisingly easily, so I didn't have to ask a mechanic. (sweat) It's really amazing! ★ ENGINEER pliers with vise grip function, with a serrated grip for a firm hold. It's a well-known manufacturer. Commonly called "Zaurus." - Brand: ENGINEER - Model Name: PZ-09 - Function: Vise grip - Jaw Shape: Serrated grip - Jaw Shape: Flat tip - Weight: 400g - Suitable screw size (actual size): ∅7mm～12mm - Suitable screw head diameter: φ3～9.5mm ※ Manufacturer product site https://www.nejisaurus.engineer.jp/product-page/pz-65-%E3%83%8D%E3%82%B8%E3%82%B6%E3%82%A6%E3%83%AB%E3%82%B9vp-2-1 ※ Product introduction and usage video https://youtu.be/_KGi8hU7CrU?si=Hn3QT9N4H8LrwDL9 ※ There are also people on YouTube who have posted videos using this product to turn rusty screws, so please take a look. ※ As it is a precision tool, it will be shipped with bubble wrap. Thank you for viewing.