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The Sia 1950 SiaSpeed Multihole Discs 150mm P180 offer high-performance sanding with superior dust extraction, ideal for use in automotive surface preparation and finishing. Optimized for speed and longevity, these discs are designed to deliver consistent, smooth results—especially on body filler, paint, primer, and composite materials. Combination of multihole pattern and high-quality aluminum oxide abrasive ensures efficient material removal and reduced clogging for longer disc life.