Opticut 5.25 //free\\ -

To understand why Opticut 5.25 is superior for grinding, you must understand what it lacks. Historically, cutting fluids relied on to provide extreme pressure (EP) lubrication. While effective, chlorine can stain yellow metals (brass/bronze) and, when burned, creates hazardous fumes and sticky residues.

Many fluids react with the cobalt binder in carbide tools, leading to "leaching" (cobalt removal) and dulling performance. Opticut 5.25 is generally safe for carbide grinding because of its chlorine-free formula, though always confirm with your specific carbide grade. Opticut 5.25

While you could use this fluid for heavy milling, that is not its intended purpose. Opticut 5.25 is a specialist. Here is where it excels: To understand why Opticut 5