Protect empty CNC machine spindles, tool magazines, and turret pockets from metal swarf, abrasive dust, and high-pressure cutting fluids with industrial-grade Closure Holders (HSK protection plugs). Featuring a precision-ground HSK taper shank, these heavy-duty cover plugs seal unused tooling positions flush against the spindle nose. By maintaining internal cleanliness and preventing coolant or chips from infiltrating sensitive clamping mechanisms, they safeguard automatic tool changer (ATC) systems from premature wear, corrosion, and operational downtime.
